HomeMy WebLinkAboutStaff Report 8083
City of Palo Alto (ID # 8083)
City Council Staff Report
Report Type: Informational Report Meeting Date: 5/22/2017
City of Palo Alto Page 1
Summary Title: Library Information Report
Title: Responses to Questions From City Council Following the October 4,
2016, Joint Meeting With Library Advisory Commission
From: City Manager
Lead Department: Library
Palo Alto City Council and the Library Advisory Commission attended a Joint Meeting on
October 4, 2016. This informational report provides additional information to the topics that
were discussed and questions that Council Members asked.
Open Hours:
Hours of Operation: Palo Alto City Library expanded its public service hours in September 2015.
On days that the library is open, service hours begin at 10:00 am. Rinconada and Mitchell Park
libraries are now open 10am-9pm, Monday-Thursday. Both libraries have extended hours on
Sundays from 10am-6pm. Downtown library is currently closed on Monday and College Terrace
library is closed on Mondays and Thursdays. Both libraries are now open 10am-6pm on open
days. The libraries are open a combined total of 260 hours a week. A comparison chart with
other Silicon Valley and Redwood City libraries is attached.
College Terrace Library: Originally built in 1936, the approximately 2860 square feet College
Terrace Library reopened in 2010 after a yearlong closure for upgrades and earthquake
retrofitting. The cost estimate to open the library on Thursdays is $121.15/hour (salary, benefits
and overhead). Operation costs for all the five branches is approximately $2,864.80/hour (see
https://www.sanjoseca.gov/DocumentCenter/View/28146 for some larger library
comparisons)
Branch
Salary &
Benefits
Overhead (variable
costs like water and
Collection
(physical and Totals
City of Palo Alto Page 2
electricity)* virtual)
Children's $511.58 $19.71 $43.77 $575.06
College Terrace $121.15 $19.71 $47.89 $188.76
Downtown $186.37 $19.71 $43.08 $249.16
Mitchell Park $948.31 $19.71 $76.55 $1,044.57
Rinconada $724.74 $19.71 $62.80 $807.26
Totals $2,492.14 $98.57 $274.09 $2,864.80
Note: Individual library overhead costs are not available. Total overhead costs were split
between the libraries.
Expansion of “teen only” hours: Final Cram Slam is one of Mitchell Park library’s most popular
teen programs. Offered on Fridays and Saturdays from 6pm-9pm in May and December during
finals week, this program attracted an audience of 150 to 200 teens last fiscal year. While no
formal plans have been made to expand “teen only” hours, many of the library’s online learning
tools are available 24/7. In FY18, the library is also planning to subscribe to Brainfuse, an online
tutoring service that provides one-on-one online homework help, test prep, resume help and
skills building services. Brainfuse will be available Monday through Sunday between 1-10 pm.
Circulation Statistics:
Today, libraries are a vibrant active learning and community space in addition to being
repositories of books and other materials. A typical patron might visit the library for many
reasons – to find materials or information, to attend a program, to use the library’s internet
stations, to access free wireless, to study, work or socialize with friends, or to use the meeting
or community rooms. As libraries have transformed themselves in response to the community
needs, historical measurements of library use need to be reviewed along with metrics of
success for new services. In line with the national and regional trends, Palo Alto library’s
circulation has dropped in comparison to the previous years. However, every other metric -
visitor count, programming attendance, online resource usage and community room and
meeting room usage have increased.
Additionally, in the last year, the Palo Alto community has been able to enjoy the offerings of
the newly renovated Mitchell Park library. Mitchell Park’s Children’s Area, which is as large as
the public service space in Children’s Library, in particular has become a destination for many
families. As a result, the Children’s Library’s visitor counts and checkouts have seen a decline.
Clarification on the term “Youth librarians”: Both libraries have librarians who are
professionally-trained (Master’s degrees) librarians specially trained to work with children and
teens, along with parents and caregivers.
City of Palo Alto Page 3
Facilities:
The concept of libraries emerging as a critical community space is most clearly demonstrated by
the growing use of meeting spaces available at three of the five libraries in Palo Alto. In FY16,
the library had a total of 8,695 uses of the meeting spaces. Based on user ratings, patrons seem
to be very satisfied with this feature. They have rated this service between 4.5-5 stars on
LiquidSpace and 4-5 stars on Yelp.
Branch Reservations
Downtown 1,352
Mitchell Park 3,113
Rinconada 4,230
Total 8,695
Collections and Programs:
Palo Alto library has been closely monitoring changes in user demographics. As community
needs are changing, the library has also responded by expanding relevant collections and
programs.
Foreign Language Collection: The attached 2011-15 American Community Survey indicates that
30% of the population is Asian. Other surveys also indicate that the community speaks many
languages in addition to English– Spanish, Hebrew, Persian, Russian, Mandarin, Korean,
Japanese and several Indian languages. The library has a robust and popular foreign language
collection. An attachment of the library’s foreign language collection list is provided.
Diverse Programming: In the last year, the library launched a New Americans Program series
with programs ranging from Welcome to America series, ESL Conversation Group, Beyond the
Basics, ESL Book Club and Citizenship classes. The library’s youth department also offers
bilingual story times in Mandarin, Spanish, Russian and Persian. Several multi-cultural festivals
and displays have also been well received by the community. The library also offers volunteer
opportunities that include recruiting expert retirees in the area to assist with ESL and
technology classes.
A discussion about the library’s collections and programs would be incomplete without
mentioning online learning opportunities provided by the many subscription databases and
ebooks. In FY16, database and ebook usage increased by 96.7%. The library’s database list for
FY18 is attached. While there is no formal plan to offer this now, some Massive Open Online
Courses classes use the meeting rooms to meet-up to work together.
City of Palo Alto Page 4
3D Printing: The library also has a reputation of providing popular technology related services
and programming. In 2016, the library introduced 3D printing at the Rinconada and the
Downtown library. Launched in September 2016, this highly sought-after service attracted 90
curious families. While this service was mostly used for recreational purposes, teens Justin and
Sri developed, designed, and constructed a prototype traffic calming / pedestrian safety system
for their elementary school using 3D parts printed at PACL! Unfortunately, this service is not
available at the Mitchell Park Library at this time as 3D printing impacts air quality that could
compromise the library’s LEED Platinum status if we seek recertification. At this time too, there
is not a way to place the 3D printer in a printer room, like other copiers, as the device requires
additional staff supervision.”
Other Media definition: The library circulates items that are based on interests such as Watt
metering devices & bocce balls (Downtown Library).
Partnerships:
The library collaborates and partners with many City departments and local organizations.
MP teen center and library collaboration: The Library and the Mitchell Park Teen Center have
been collaborating in the following areas:
Class Visits – The library’s middle school library tour includes a visit to the Teen Center.
Programs – MP Teen Center and the library work in partnership on several popular
programs. Past examples include Festival of Colors, Finals Cram Slam, Nail Painting
Party, International Games Days, and Toy Drive.
Publicity – Both organizations share each other's programs on social media on Facebook
and tag all teen groups including the library’s TLAB and clickPA, and the Teen Center
teen group, The Drop.
Little Free Libraries: These libraries are not sponsored by the library. FOPAL has occasionally
placed their donated items into these stations as an advertisement. See
https://littlefreelibrary.org/ for more information.
Attachments:
Attachment A: SVLS and Redwood City Library Open Hours
Attachment B: PACL Digital Resources Services FY 17-18
Attachment C: Non English language items
Attachment D: ACS Demographic and Housing estimates
SVLS and Redwood City Library Open Hours
Library Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Los Gatos 11-8 11-8 10-6 10-6 10-6 10-5 12-5
(Sept-
May)
10-3
(Jun-Aug)
Mountain View 10-9 10-9 10-9 10-9 10-6 10-6 1-5
Palo Alto
Rinconada
(formerly Main)
10-9
10-9
10-9
10-9
10-6
10-6
10-6
Children's 10-6 10-6 10-6 10-6 10-6 10-6 1-5
College Terrace closed 10-6 10-6 closed 10-6 10-6 closed
Downtown closed 10-6 10-6 10-6 10-6 10-6 closed
Mitchell Park 10-9 10-9 10-9 10-9 10-6 10-6 10-6
San Jose
Martin Luther
King, Jr. - Main
8-9 8-9 8-9 8-9 8-6 9-6 1-7
Almaden 1-7 10-7 10-7 10-7 12-6 10-6 closed
Dr.Roberto Cruz-
Alum Rock
1-7 10-7 10-7 10-7 12-6 10-6 closed
Alviso 1-7 10-7 10-7 10-7 12-6 10-6 closed
Bascom 1-7 10-7 10-7 10-7 12-6 10-6 closed
Berryessa 1-7 10-7 10-7 10-7 12-6 10-6 closed
Biblio.
Latinoamericana
1-7 10-7 10-7 10-7 12-6 10-6 closed
Calabazas 1-7 10-7 10-7 10-7 12-6 10-6 closed
Cambrian 1-7 10-7 10-7 10-7 12-6 10-6 closed
Edenvale 1-7 10-7 10-7 10-7 12-6 10-6 closed
Educational Park 1-7 10-7 10-7 10-7 12-6 10-6 closed
Evergreen 1-7 10-7 10-7 10-7 12-6 10-6 closed
Hillview 1-7 10-7 10-7 10-7 12-6 10-6 closed
Joyce Ellington 1-7 10-7 10-7 10-7 12-6 10-6 closed
Pearl Avenue 1-7 10-7 10-7 10-7 12-6 10-6 closed
Rose Garden 1-7 10-7 10-7 10-7 12-6 10-6 closed
Santa Teresa 1-7 10-7 10-7 10-7 12-6 10-6 closed
Seven Trees 1-7 10-7 10-7 10-7 12-6 10-6 closed
Tully Community 1-7 10-7 10-7 10-7 12-6 10-6 closed
Vineland 1-7 10-7 10-7 10-7 12-6 10-6 closed
West Valley 1-7 10-7 10-7 10-7 12-6 10-6 closed
Willow Glen 1-7 10-7 10-7 10-7 12-6 10-6 closed
East San Jose
Carnegie
1-7 10-7 10-7 10-7 12-6 10-6 closed
Santa Clara City
Central Park
10-9
10-9
10-9
10-9
10-6
10-6
1-5
Mission Library
and Family
Reading Center
1-6 1-6 1-8 10-6 1-6 closed closed
Northside Branch 11-8 11-8 10-6 10-6 10-6 10-6 closed
Sunnyvale 10-9 10-9 10-9 10-9 10-6 10-6 12-6
Santa Clara
County
Campbell 1-9 1-9 10-9 10-6 10-6 10-6 closed
Cupertino 10-9 10-9 10-9 10-9 10-6 10-6 12-6
Gilroy 1-9 1-9 1-9 10-6 10-6 10-6 closed
Los Altos 10-9 10-9 10-9 10-9 10-7 10-7 10-7
Milpitas 10-9 10-9 10-9 10-9 10-7 10-7 10-7
Morgan Hill 1-9
Lobby
12-1
1-9
Lobby
12-1
1-9
Lobby
12-1
10-6 10-6 10-6 closed
Saratoga 1-9 1-9 10-6 10-6 10-6 10-6 1-5
Woodland 11-8 11-8 11-8 11-5 11-5 11-5 closed
Redwood City
Downtown 10-9 10-9 10-9 10-9 10-5 10-5 12-5
Fair Oaks Branch 10-7 10-7 10-7 10-7 10-5 10-5 closed
Schaberg Branch 10-7 10-7 10-7 10-7 closed 10-5 closed
Redwood Shores 10-8 10-8 10-8 10-8 closed 10-5 12-5
PACL Digital Resources
Services (FY 2017-18)
Title Content Type
Intended
Audience
NoveList Plus Reader's advisory resource All ages
Novelist K-8 Plus Reader's advisory resource
Elementary and
middle school
students
Gale Database Package
(Consortia package)
Comprehensive information
resources for the public; bundled
usage data All ages
Academic Onefile
Biography Resource Center Biography database All ages
Business and Company Resource
Center
Provides information on
businesses Adults
Chilton Library
Detailed information for vehicle
maintenance and repairs Adults
Custom Newspapers Full-text newspaper database Adults
Gale Virtual Reference Library
(10 titles)Full-text reference books All ages
Health and Wellness Resource
Center Health and medicine resources Adults
HistoryResource Center
full-text periodicals, reference
works, primary documents and
scholarly analyses
Informe
Full-text articles from Spanish and
Portuguese magazines and
newspapers Adults
InfoTrac OneFile with subset per
databases
Peer-reviewed, full-text scholarly
content across the academic
disciplines Adults
Kids InfoBits
Full-text articles with pictures in
magazines, newspapers and
reference books
Elementary school
students
Literature Resource Center
Full-text articles about authors,
their works, and literary
movements All ages
Opposing Viewpoints
Full-text articles covering all sides
of social issues All ages
Student Resource Center - Gold
Full-text magazines providing
articles highlighting significant
ideas, discoveries, events and
people from major eras in
American and world history
Middle and high
school students
ABC Mouse.com
3,500+ interactive books,
educational games, puzzles, and
other learning activities young learners
(ages2-6+)
American Physical Society
Journals Physics Adults
AtoZdatabases Business resources Adults
Author Alerts service
Customers subscribe to receive
notification about newly added
titles to the Library All ages
Axis360
Electronic books, digital audio
books and music All ages
Bay Areas Consumers Checkbook
Rates companies and services in
the Bay area Adults
BookFlix - Scholastic
Streamed children's books; the
only resource with fiction and
nonfiction side by side for reading
and learning
Preschool and
elementary
BookLetters
Weekly e-newsletters for Adults,
Kids & Teens or browse the lists of
bestsellers & award winners All ages
California Mission Books
Full text books for reports on
California missions All ages
Credo Reference Premium
Full text of over 600 reference
books that cover all subjects All ages
Culturegram online Comprehensive homeowrk support
Elementary school
students
Discover & Go
Customers use it to obtain free
passes to museums in the Bay
area.All ages
Encyclopedia Britannica Reference Comprehensive All ages
Encyclopedia Britannica Kids Comprehensive for children
Elementary and
middle school
students
Enki
Digital books published by small
and independent press All ages
Evanced Calendar
Customers use it to register for
library programs; library uses it for
statistics All ages
Evanced Summer Reader
Customers use it to register for
Summer Reading Program; staff
use it for the program management All ages
Foundation Center
Freegal Music
Streaming movies and music,
more concentration on classic titles All ages
Hoopla
Streaming movies and music;
more concentration on popular
titles All ages
Learning Express
Comprehensive test preparation
software for all ages All ages
Mango Languages International langauges learning All ages
Morningstar Financial data for investors Adults
OverDrive
Electronic books, digital audio
books and music All ages
Newsbank Online newspapers of local interest All ages
Oxford English Dictionary Comprehensive All ages
Proquest Ancestry Library Edition Geneology research Adults
Proquest Heritage Quest
Collection of the U.S. Federal
Census records from 1790 through
1930, along with more than 25,000
fully searchable family and local
history books, Freedman's records
and more Mainly adults
ProQuest NYT Historical
Primary resource for students
homework assistance
Middle and high
school students
ProQuest Newspaper Direct Press
Display, renamed Press Reader in
2016
Only resource for same day 3000
international newspapers in native
languages All ages
ProQuest Safari Tech Books
Comprehensive collection of
electronic books on science and
technology All ages
Rand California California statistical research Adults
Social Studies Fact Cards
A series of research resources
designed for quick reference
Elementary and
middle school
students
Total Boox Juvenile books and books reviews
Tumble Books
Children's books online, only
resource with bi-lingual books
Preschool and
elementary school
students
World Book
Electronic version of the
enclopedia All ages
Zinio Popular magazines in digital form All ages
Staff Tools
Adobe Creative Cloud
eBranch staff use for creating
content for the library website;
managers use it for creating
marketing and other documents
Better Impact
Staff use for managing volunteer
activitives
CollectionHQ
Staff use for managing, promoting
and selecting library collection
Lynda.com
Mass360
Staff use for managing mobile
devices
OCLC Access
Staff tool for creating records for
online catalog
Language
# Items
DEC 2016
# Items DEC
2015
# Items DEC
2014 Total Checkouts 2016 Checkouts 2015 Checkouts 2014 Checkouts Turnover
Chinese 7,234 6,210 5,055 134,302 20,853 37,834 17,712 18.56539
French 1,323 438 276 77,073 5,056 1,747 842 58.25624
German 532 164 133 23,523 1,928 378 181 44.21617
Gujarati 103 109 109 150 45 61 18 1.456311
Hebrew 224 109 39 6,834 832 392 64 30.50893
Hindi 1,083 670 492 12,095 1,347 1,992 1,313 11.16805
Italian 617 197 142 28,009 2,312 359 73 45.39546
Japanese 380 49 6 26,481 1,669 446 46 69.68684
Korean 659 227 171 13,147 2,031 1,418 1,371 19.94992
Panjabi 98 110 110 124 12 18 1 1.265306
Persian 437 191 191 5,397 345 390 104 12.35011
Russian 2,637 2,375 1,912 28,053 5,547 7,136 3,467 10.63823
Spanish 3,316 3,533 3,334 63,341 6,635 13,084 9,208 19.10163
Vietnamese 69 42 4 804 58 50 12 11.65217
18,712 14,424 11,974 419,333 48,670 65,305 34,412 22.40984
Non-English Language Materials 2014 - 2016
DP05 ACS DEMOGRAPHIC AND HOUSING ESTIMATES
2011-2015 American Community Survey 5-Year Estimates
Supporting documentation on code lists, subject definitions, data accuracy, and statistical testing can be found on the American Community Survey
website in the Data and Documentation section.
Sample size and data quality measures (including coverage rates, allocation rates, and response rates) can be found on the American Community
Survey website in the Methodology section.
Tell us what you think. Provide feedback to help make American Community Survey data more useful for you.
Although the American Community Survey (ACS) produces population, demographic and housing unit estimates, it is the Census Bureau's Population
Estimates Program that produces and disseminates the official estimates of the population for the nation, states, counties, cities and towns and
estimates of housing units for states and counties.
Subject Palo Alto city, California
Estimate Margin of Error Percent Percent Margin of
Error
SEX AND AGE
Total population 66,478 +/-41 66,478 (X)
Male 32,849 +/-755 49.4%+/-1.1
Female 33,629 +/-756 50.6%+/-1.1
Under 5 years 3,248 +/-359 4.9%+/-0.5
5 to 9 years 4,121 +/-333 6.2%+/-0.5
10 to 14 years 5,110 +/-411 7.7%+/-0.6
15 to 19 years 3,924 +/-418 5.9%+/-0.6
20 to 24 years 3,046 +/-485 4.6%+/-0.7
25 to 34 years 8,274 +/-666 12.4%+/-1.0
35 to 44 years 9,603 +/-477 14.4%+/-0.7
45 to 54 years 10,130 +/-559 15.2%+/-0.8
55 to 59 years 4,324 +/-479 6.5%+/-0.7
60 to 64 years 3,171 +/-389 4.8%+/-0.6
65 to 74 years 5,841 +/-475 8.8%+/-0.7
75 to 84 years 3,458 +/-321 5.2%+/-0.5
85 years and over 2,228 +/-292 3.4%+/-0.4
Median age (years)41.1 +/-0.8 (X)(X)
18 years and over 51,101 +/-507 76.9%+/-0.8
21 years and over 49,361 +/-551 74.3%+/-0.8
62 years and over 13,245 +/-484 19.9%+/-0.7
65 years and over 11,527 +/-421 17.3%+/-0.6
18 years and over 51,101 +/-507 51,101 (X)
Male 24,477 +/-662 47.9%+/-1.1
Female 26,624 +/-584 52.1%+/-1.1
65 years and over 11,527 +/-421 11,527 (X)
Male 4,747 +/-284 41.2%+/-1.7
1 of 3 04/10/2017
Subject Palo Alto city, California
Estimate Margin of Error Percent Percent Margin of
Error
Female 6,780 +/-295 58.8%+/-1.7
RACE
Total population 66,478 +/-41 66,478 (X)
One race 63,421 +/-473 95.4%+/-0.7
Two or more races 3,057 +/-469 4.6%+/-0.7
One race 63,421 +/-473 95.4%+/-0.7
White 41,325 +/-904 62.2%+/-1.3
Black or African American 1,054 +/-369 1.6%+/-0.6
American Indian and Alaska Native 64 +/-104 0.1%+/-0.2
Cherokee tribal grouping 1 +/-5 0.0%+/-0.1
Chippewa tribal grouping 0 +/-28 0.0%+/-0.1
Navajo tribal grouping 0 +/-28 0.0%+/-0.1
Sioux tribal grouping 0 +/-28 0.0%+/-0.1
Asian 19,956 +/-748 30.0%+/-1.1
Asian Indian 3,463 +/-667 5.2%+/-1.0
Chinese 10,500 +/-794 15.8%+/-1.2
Filipino 477 +/-164 0.7%+/-0.2
Japanese 1,392 +/-346 2.1%+/-0.5
Korean 1,995 +/-599 3.0%+/-0.9
Vietnamese 654 +/-384 1.0%+/-0.6
Other Asian 1,475 +/-616 2.2%+/-0.9
Native Hawaiian and Other Pacific Islander 70 +/-65 0.1%+/-0.1
Native Hawaiian 16 +/-26 0.0%+/-0.1
Guamanian or Chamorro 0 +/-28 0.0%+/-0.1
Samoan 0 +/-28 0.0%+/-0.1
Other Pacific Islander 54 +/-59 0.1%+/-0.1
Some other race 952 +/-436 1.4%+/-0.7
Two or more races 3,057 +/-469 4.6%+/-0.7
White and Black or African American 203 +/-108 0.3%+/-0.2
White and American Indian and Alaska Native 146 +/-88 0.2%+/-0.1
White and Asian 1,992 +/-415 3.0%+/-0.6
Black or African American and American Indian and
Alaska Native
37 +/-42 0.1%+/-0.1
Race alone or in combination with one or more other
races
Total population 66,478 +/-41 66,478 (X)
White 43,909 +/-898 66.1%+/-1.3
Black or African American 1,332 +/-371 2.0%+/-0.6
American Indian and Alaska Native 339 +/-169 0.5%+/-0.3
Asian 22,473 +/-754 33.8%+/-1.1
Native Hawaiian and Other Pacific Islander 299 +/-161 0.4%+/-0.2
Some other race 1,308 +/-496 2.0%+/-0.7
HISPANIC OR LATINO AND RACE
Total population 66,478 +/-41 66,478 (X)
Hispanic or Latino (of any race)4,876 +/-674 7.3%+/-1.0
Mexican 2,901 +/-607 4.4%+/-0.9
Puerto Rican 99 +/-73 0.1%+/-0.1
Cuban 173 +/-126 0.3%+/-0.2
Other Hispanic or Latino 1,703 +/-383 2.6%+/-0.6
Not Hispanic or Latino 61,602 +/-684 92.7%+/-1.0
White alone 37,698 +/-1,011 56.7%+/-1.5
Black or African American alone 1,054 +/-369 1.6%+/-0.6
American Indian and Alaska Native alone 14 +/-17 0.0%+/-0.1
Asian alone 19,867 +/-740 29.9%+/-1.1
Native Hawaiian and Other Pacific Islander alone 62 +/-61 0.1%+/-0.1
2 of 3 04/10/2017
Subject Palo Alto city, California
Estimate Margin of Error Percent Percent Margin of
Error
Some other race alone 173 +/-145 0.3%+/-0.2
Two or more races 2,734 +/-455 4.1%+/-0.7
Two races including Some other race 214 +/-204 0.3%+/-0.3
Two races excluding Some other race, and Three
or more races
2,520 +/-433 3.8%+/-0.7
Total housing units 27,555 +/-618 (X)(X)
CITIZEN, VOTING AGE POPULATION
Citizen, 18 and over population 42,853 +/-797 42,853 (X)
Male 20,371 +/-686 47.5%+/-1.2
Female 22,482 +/-600 52.5%+/-1.2
Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is
represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted
roughly as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of
error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to
nonsampling error (for a discussion of nonsampling variability, see Accuracy of the Data). The effect of nonsampling error is not represented in these
tables.
For more information on understanding race and Hispanic origin data, please see the Census 2010 Brief entitled, Overview of Race and Hispanic
Origin: 2010, issued March 2011. (pdf format)
While the 2011-2015 American Community Survey (ACS) data generally reflect the February 2013 Office of Management and Budget (OMB)
definitions of metropolitan and micropolitan statistical areas; in certain instances the names, codes, and boundaries of the principal cities shown in
ACS tables may differ from the OMB definitions due to differences in the effective dates of the geographic entities.
Estimates of urban and rural population, housing units, and characteristics reflect boundaries of urban areas defined based on Census 2010 data. As
a result, data for urban and rural areas from the ACS do not necessarily reflect the results of ongoing urbanization.
Source: U.S. Census Bureau, 2011-2015 American Community Survey 5-Year Estimates
Explanation of Symbols:
1. An '**' entry in the margin of error column indicates that either no sample observations or too few sample observations were available to
compute a standard error and thus the margin of error. A statistical test is not appropriate.
2. An '-' entry in the estimate column indicates that either no sample observations or too few sample observations were available to compute an
estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest interval or upper interval of an
open-ended distribution.
3. An '-' following a median estimate means the median falls in the lowest interval of an open-ended distribution.
4. An '+' following a median estimate means the median falls in the upper interval of an open-ended distribution.
5. An '***' entry in the margin of error column indicates that the median falls in the lowest interval or upper interval of an open-ended distribution. A
statistical test is not appropriate.
6. An '*****' entry in the margin of error column indicates that the estimate is controlled. A statistical test for sampling variability is not appropriate.
7. An 'N' entry in the estimate and margin of error columns indicates that data for this geographic area cannot be displayed because the number of
sample cases is too small.
8. An '(X)' means that the estimate is not applicable or not available.
3 of 3 04/10/2017