Skip to content
Facebook iconYouTube iconTwitter iconFlickr iconLinkedInInstagram
Office of Planning, Environment, & Realty (HEP)
HEP Events Guidance Publications Glossary Awards Contacts

2000, 2007-2009 ACS, Census 2010 and 2010-2012 ACS

CTPP logo

Geographic Area: Sammamish city, Washington FIPS: 5361115

Download an Excel file* of this document: profile_washington__sammamish_city.xls.

Table 1. Selected Characteristics
Table 1. Selected Characteristics Census 2000 2007-2009 ACS 2010 Census 2010-2012 ACS Is the numeric change
between Census 2000 and 2010-2012
ACS Significant? **
Value MOE(+/-) Value MOE(+/-) Value Value MOE(+/-)
Total Persons 1 34,119 -- 42,071 55 45,780 47,976 40 --
Persons in Households 2 34,119 0 -- -- 45,681 47,895 59 Yes
Total Households 3 11,172 105 13,484 263 15,154 15,581 377 Yes
Average Number of Persons per Household 4 3.05 0.06 3.12 0.06 3.01 3.07 0.07 No
Average Household Income 5 $130,420 $3,634 $153,471 $8,515 -- $164,899 $9,623 Yes
Average Number of Vehicles per Household 6 2.23 0.05 2.16 0.08 -- 2.17 0.09 No
Percent of Persons in Poverty 7 2.00 0.40 3.10 1.11 -- 2.40 1.25 No
Percent Minority 8 12.60 0.90 21.50 2.20 25.30 26.10 2.27 Yes
Percent of Persons 65 and Over 9 3.60 0.50 4.60 0.73 5.70 6.00 0.95 Yes
Percent of Persons Foreign Born 10 9.90 0.80 22.40 2.27 -- 23.80 2.46 Yes
Total Workers at Place of Residence11 17,448 442 21,477 1,173 -- 22,688 802 Yes
Table 2a. Mode to Work
Table 2a. Mode to Work 12 CTPP2000 2007-2009 ACS 2010-2012 ACS Is the numeric change
between CTPP 2000 and 2010-2012
ACS Significant? **
Number Percent MOE(+/-)* Number Percent MOE(+/-)* Number Percent MOE(+/-)*
 
Total Workers 17,145 100.0 442 19,941 100.0 617 22,259 100.0 791 Yes
Drove alone 13,660 79.7 433 14,659 73.5 679 16,058 72.1 796 Yes
2-person Carpool 1,195 7.0 162 1,595 8.0 337 2,033 9.1 464 Yes
3-or-more-person Carpool 275 1.6 79 361 1.8 159 431 1.9 180 No
Transit 355 2.1 90 1,219 6.1 343 1,010 4.5 246 Yes
Bike 30 0.2 26 117 0.6 78 51 0.2 46 No
Walked 155 0.9 59 177 0.9 128 259 1.2 178 No
Taxi, Motorcycle and Other means 180 1.0 64 257 1.3 200 134 0.6 79 No
Worked at Home 1,300 7.6 169 1,556 7.8 317 2,283 10.3 350 Yes
Table 2b. Mode to Work
Table 2b. Mode to Work 12 CTPP2000 2007-2009 ACS 2010-2012 ACS Is the numeric change
between CTPP 2000 and 2010-2012
ACS Significant? **
Number Percent MOE(+/-)* Number Percent MOE(+/-)* Number Percent MOE(+/-)*
  At Place of Work
Total Workers 4,195 100.0 290 -- 100.0 -- -- 100.0 -- --
Drove alone 2,395 57.1 226 -- -- -- -- -- -- --
2-person Carpool 325 7.7 86 -- -- -- -- -- -- --
3-or-more-person Carpool 59 1.4 37 -- -- -- -- -- -- --
Transit 20 0.5 21 -- -- -- -- -- -- --
Bike 0 0.0 0 -- -- -- -- -- -- --
Walked 65 1.5 39 -- -- -- -- -- -- --
Taxi, Motorcycle and Other means 25 0.6 24 -- -- -- -- -- -- --
Worked at Home 1,300 31.0 169 -- -- -- -- -- -- --
Table 3. Mean Travel Time by Mode to Work
Table 3. Mean Travel Time by Mode to Work 13 Census 2000 2007-2009 ACS 2010-2012 ACS Is the change in travel time
between Census 2000 and 2010-2012
ACS Significant? **
Minutes MOE(+/-) Minutes MOE(+/-) Minutes MOE(+/-)
  At Place of Residence
Total Workers (does not include workers who worked at home) 30.3 0.7 29.0 2.0 28.7 2.1 No
Drove alone 29.0 0.7 26.8 2.2 27.5 2.3 No
Carpooled 32.1 2.4 31.4 9.1 28.1 8.1 No
Transit 54.5 7.3 51.4 20.4 48.0 17.2 No
Taxi, Motorcycle, Walk, Bicycle and Other means 47.7 10.8 30.0 20.5 31.1 23.4 No

Notes:

* The coefficient of variation (CV) can be derived by the standard error (SE) divided by the estimate, while SE = MOE/1.645.
** The z-value of the difference of the two estimates are used to determined if the two estimates are significantly different at 90% confidence level.

1 Census 2000 SF3 Table P1; 2007-2009 ACS Table B01003; 2010-2012 ACS Table B01003

2 Census 2000 SF3 Table P9; 2007-2009 ACS Table B09016; 2010-2012 ACS Table B01003 minus Table B26001

3 Census 2000 SF3 Table P10; 2007-2009 ACS Table B19001; 2010-2012 ACS Table B19001

4 Census 2000 SF3 Table P9 divided Census 2000 SF3 Table P10; 2007-2009 ACS Table B09016 divided 2007-2009 ACS Table B19001; 2010-2012 ACS Table S1101

5 CTPP2000 Table 1-090; 2007-2009 ACS Table B19025; 2010-2012 ACS Table B19025

6 Census 2000 SF3 Table H46; 2007-2009 ACS Table B25046; 2010-2012 ACS Table B25046

7 Census 2000 SF3 Table P87; 2007 -2009 ACS Table B17001; 2010-2012 ACS Table B17001

8 Census 2000 SF3 Table P6; 2007-2009 ACS Table B02001; 2010-2012 ACS Table B02001

9 Census 2000 SF3 Table P8; 2007-2009 ACS Table B01001; 2010-2012 ACS Table B01001

10 Census 2000 SF3 Table P21; 2007-2009 ACS Table B06003; 2010-2012 ACS Table B06003

11 Census 2000 SF3 Table P43; 2007-2009 ACS Table B23001; 2010-2012 ACS Table B23025

12 Residence place information is from CTPP2000 Table 1-002; 2007- 2009 ACS Table B08301; 2010-2012 ACS Table B08301. Workplace information is from CTPP2000 Table 2-002; 2007-2009 ACS Table B08406; 2010-2012 ACS Table B08601

13 CTPP2000 1-118; 2007-2009 ACS Table C08136; 2010-2012 ACS Table C08136

Updated: 8/11/2017
HEP Home Planning Environment Real Estate
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000