Download an Excel file* of this document: profile_massachusetts__essex_county.xls.
| 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 | 723,419 | -- | 737,671 | -- | 743,159 | 750,452 | -- | -- |
| Persons in Households 2 | 706,478 | 615 | 722,662 | -- | 726,687 | 732,778 | -- | -- |
| Total Households 3 | 275,410 | 507 | 277,339 | 1,869 | 285,956 | 285,412 | 1,785 | Yes |
| Average Number of Persons per Household 4 | 2.57 | 0.01 | 2.61 | 0.02 | 2.54 | 2.57 | 0.01 | No |
| Average Household Income 5 | $68,550 | $566 | $86,782 | $1,396 | -- | $89,619 | $1,600 | Yes |
| Average Number of Vehicles per Household 6 | 1.60 | 0.01 | 1.66 | 0.02 | -- | 1.62 | 0.02 | No |
| Percent of Persons in Poverty 7 | 8.90 | 0.20 | 10.10 | 0.50 | -- | 11.40 | 0.53 | Yes |
| Percent Minority 8 | 13.60 | 0.20 | 17.60 | 0.33 | 18.10 | 19.10 | 0.35 | Yes |
| Percent of Persons 65 and Over 9 | 13.90 | 0.20 | 13.80 | 0.29 | 14.10 | 14.40 | 0.29 | Yes |
| Percent of Persons Foreign Born 10 | 11.30 | 0.20 | 14.00 | 0.41 | -- | 15.10 | 0.42 | Yes |
| Total Workers at Place of Residence11 | 350,070 | 2,033 | 373,049 | 3,351 | -- | 369,978 | 3,132 | Yes |
| 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 | 343,630 | 100.0 | 2,031 | 360,211 | 100.0 | 3,310 | 361,919 | 100.0 | 3,239 | Yes |
| Drove alone | 270,605 | 78.7 | 1,968 | 277,258 | 77.0 | 3,663 | 276,649 | 76.4 | 3,439 | Yes |
| 2-person Carpool | 26,180 | 7.6 | 760 | 26,926 | 7.5 | 1,637 | 23,423 | 6.5 | 1,496 | Yes |
| 3-or-more-person Carpool | 6,155 | 1.8 | 374 | 7,138 | 2.0 | 929 | 5,800 | 1.6 | 826 | No |
| Transit | 15,504 | 4.5 | 589 | 17,452 | 4.8 | 1,201 | 18,953 | 5.2 | 1,322 | Yes |
| Bike | 585 | 0.2 | 116 | 1,395 | 0.4 | 391 | 924 | 0.3 | 314 | Yes |
| Walked | 9,655 | 2.8 | 467 | 10,701 | 3.0 | 1,002 | 13,110 | 3.6 | 1,171 | Yes |
| Taxi, Motorcycle and Other means | 3,675 | 1.1 | 289 | 3,683 | 1.0 | 562 | 5,495 | 1.5 | 724 | Yes |
| Worked at Home | 11,285 | 3.3 | 504 | 15,658 | 4.3 | 1,206 | 17,565 | 4.9 | 1,258 | Yes |
| 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 | 304,580 | 100.0 | 2,008 | 309,557 | 100.0 | 5,069 | 311,772 | 100.0 | 5,045 | Yes |
| Drove alone | 247,550 | 81.3 | 1,930 | 247,120 | 79.8 | 4,617 | 244,781 | 78.5 | 4,639 | No |
| 2-person Carpool | 23,200 | 7.6 | 717 | 22,351 | 7.2 | 1,600 | 20,312 | 6.5 | 1,432 | Yes |
| 3-or-more-person Carpool | 5,385 | 1.8 | 350 | 6,345 | 2.0 | 897 | 5,329 | 1.7 | 692 | No |
| Transit | 4,020 | 1.3 | 302 | 3,942 | 1.3 | 630 | 5,709 | 1.8 | 648 | Yes |
| Bike | 600 | 0.2 | 117 | 1,232 | 0.4 | 389 | 894 | 0.3 | 330 | No |
| Walked | 9,450 | 3.1 | 462 | 10,022 | 3.2 | 991 | 12,600 | 4.0 | 1,110 | Yes |
| Taxi, Motorcycle and Other means | 3,100 | 1.0 | 266 | 2,887 | 0.9 | 540 | 4,582 | 1.5 | 664 | Yes |
| Worked at Home | 11,285 | 3.7 | 504 | 15,658 | 5.1 | 1,206 | 17,565 | 5.6 | 1,258 | Yes |
| 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) | 27.1 | 0.2 | 27.2 | 0.5 | 27.7 | 0.5 | Yes |
| Drove alone | 25.8 | 0.2 | 26.1 | 0.6 | 26.4 | 0.6 | No |
| Carpooled | 26.4 | 0.7 | 26.5 | 2.2 | 27.3 | 2.4 | No |
| Transit | 58.1 | 1.3 | 58.9 | 5.8 | 58.7 | 5.9 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 18.9 | 1.1 | 13.9 | 2.2 | 17.2 | 2.5 | 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