Download an Excel file* of this document: profile_massachusetts__chelsea_city.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? ** |
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|---|---|---|---|---|---|---|---|---|
| Value | MOE(+/-) | Value | MOE(+/-) | Value | Value | MOE(+/-) | ||
| Total Persons 1 | 35,080 | -- | 36,777 | 41 | 35,177 | 36,057 | 89 | -- |
| Persons in Households 2 | 34,134 | 145 | 35,838 | -- | 34,495 | 35,350 | -- | -- |
| Total Households 3 | 11,908 | 97 | 12,197 | 834 | 11,831 | 11,927 | 692 | No |
| Average Number of Persons per Household 4 | 2.87 | 0.06 | 2.94 | 0.19 | 2.92 | 2.96 | 0.17 | No |
| Average Household Income 5 | $42,505 | $1,794 | $50,328 | $5,499 | -- | $59,244 | $6,637 | Yes |
| Average Number of Vehicles per Household 6 | 0.95 | 0.04 | 0.98 | 0.12 | -- | 1.00 | 0.10 | No |
| Percent of Persons in Poverty 7 | 23.30 | 1.10 | 21.90 | 4.08 | -- | 23.80 | 4.68 | No |
| Percent Minority 8 | 42.60 | 1.30 | 45.40 | 5.91 | 52.20 | 52.20 | 4.62 | Yes |
| Percent of Persons 65 and Over 9 | 11.40 | 0.80 | 11.10 | 1.64 | 8.70 | 9.00 | 1.41 | Yes |
| Percent of Persons Foreign Born 10 | 36.10 | 1.20 | 41.00 | 3.97 | -- | 46.10 | 3.98 | Yes |
| Total Workers at Place of Residence11 | 13,173 | 434 | 17,477 | 1,602 | -- | 17,079 | 1,014 | 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? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| Total Workers | 12,575 | 100.0 | 429 | -- | 100.0 | -- | 16,889 | 100.0 | 1,029 | Yes |
| Drove alone | 6,010 | 47.8 | 337 | -- | -- | -- | 7,745 | 45.9 | 834 | Yes |
| 2-person Carpool | 1,460 | 11.6 | 179 | -- | -- | -- | 1,937 | 11.5 | 484 | No |
| 3-or-more-person Carpool | 745 | 5.9 | 129 | -- | -- | -- | 586 | 3.5 | 308 | No |
| Transit | 3,065 | 24.4 | 253 | -- | -- | -- | 4,104 | 24.3 | 694 | Yes |
| Bike | 60 | 0.5 | 37 | -- | -- | -- | 105 | 0.6 | 98 | No |
| Walked | 825 | 6.6 | 136 | -- | -- | -- | 1,639 | 9.7 | 504 | Yes |
| Taxi, Motorcycle and Other means | 145 | 1.2 | 57 | -- | -- | -- | 264 | 1.6 | 236 | No |
| Worked at Home | 260 | 2.1 | 77 | -- | -- | -- | 509 | 3.0 | 231 | 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? ** |
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|---|---|---|---|---|---|---|---|---|---|---|
| Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | Number | Percent | MOE(+/-)* | ||
| At Place of Work | ||||||||||
| Total Workers | 13,440 | 100.0 | 435 | 14,170 | 100.0 | 1,227 | 16,754 | 100.0 | 1,414 | Yes |
| Drove alone | 9,595 | 71.4 | 399 | 9,784 | 69.0 | 987 | 11,147 | 66.5 | 1,115 | Yes |
| 2-person Carpool | 1,190 | 8.9 | 162 | 1,067 | 7.5 | 291 | 1,518 | 9.1 | 410 | No |
| 3-or-more-person Carpool | 315 | 2.3 | 84 | 262 | 1.8 | 173 | 197 | 1.2 | 208 | No |
| Transit | 1,060 | 7.9 | 153 | 1,207 | 8.5 | 389 | 1,600 | 9.5 | 437 | Yes |
| Bike | 70 | 0.5 | 40 | 223 | 1.6 | 183 | 141 | 0.8 | 123 | No |
| Walked | 805 | 6.0 | 134 | 1,237 | 8.7 | 510 | 1,436 | 8.6 | 478 | Yes |
| Taxi, Motorcycle and Other means | 144 | 1.1 | 57 | 296 | 2.1 | 214 | 206 | 1.2 | 232 | No |
| Worked at Home | 260 | 1.9 | 77 | 94 | 0.7 | 102 | 509 | 3.0 | 231 | 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? ** |
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|---|---|---|---|---|---|---|---|
| Minutes | MOE(+/-) | Minutes | MOE(+/-) | Minutes | MOE(+/-) | ||
| At Place of Residence | |||||||
| Total Workers (does not include workers who worked at home) | 30.7 | 1.2 | -- | -- | 29.2 | 3.7 | No |
| Drove alone | 26.6 | 1.4 | -- | -- | 25.9 | 4.5 | No |
| Carpooled | 31.4 | 2.6 | -- | -- | 22.7 | 8.3 | Yes |
| Transit | 43.4 | 2.6 | -- | -- | 44.2 | 12.1 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 16.1 | 2.0 | -- | -- | 19.1 | 8.1 | 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
