Download an Excel file* of this document: profile_maine__portland_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 | 64,257 | -- | 63,065 | 39 | 66,194 | 66,159 | 43 | -- |
| Persons in Households 2 | 61,816 | 196 | 60,274 | -- | 63,581 | 64,165 | -- | -- |
| Total Households 3 | 29,722 | 181 | 28,793 | 838 | 30,725 | 30,846 | 739 | Yes |
| Average Number of Persons per Household 4 | 2.08 | 0.03 | 2.09 | 0.06 | 2.07 | 2.08 | 0.05 | No |
| Average Household Income 5 | $47,770 | $1,082 | $58,083 | $3,564 | -- | $60,644 | $3,228 | Yes |
| Average Number of Vehicles per Household 6 | 1.29 | 0.02 | 1.34 | 0.06 | -- | 1.34 | 0.06 | No |
| Percent of Persons in Poverty 7 | 14.10 | 0.60 | 16.70 | 2.11 | -- | 20.30 | 2.18 | Yes |
| Percent Minority 8 | 8.60 | 0.40 | 14.80 | 1.58 | 15.00 | 13.70 | 1.16 | Yes |
| Percent of Persons 65 and Over 9 | 13.80 | 0.60 | 13.00 | 1.06 | 12.60 | 11.90 | 0.94 | Yes |
| Percent of Persons Foreign Born 10 | 7.60 | 0.40 | 10.10 | 1.11 | -- | 11.70 | 1.53 | Yes |
| Total Workers at Place of Residence11 | 35,222 | 510 | 34,496 | 1,584 | -- | 36,915 | 1,009 | 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 | 34,625 | 100.0 | 511 | 34,047 | 100.0 | 1,286 | 36,386 | 100.0 | 1,029 | Yes |
| Drove alone | 24,475 | 70.7 | 498 | 22,487 | 66.0 | 1,321 | 25,116 | 69.0 | 1,264 | No |
| 2-person Carpool | 3,110 | 9.0 | 220 | 3,313 | 9.7 | 601 | 2,183 | 6.0 | 460 | Yes |
| 3-or-more-person Carpool | 640 | 1.8 | 102 | 543 | 1.6 | 215 | 453 | 1.2 | 186 | No |
| Transit | 1,345 | 3.9 | 147 | 1,114 | 3.3 | 308 | 1,092 | 3.0 | 279 | No |
| Bike | 365 | 1.1 | 77 | 734 | 2.2 | 210 | 593 | 1.6 | 166 | Yes |
| Walked | 3,095 | 8.9 | 220 | 3,835 | 11.3 | 539 | 4,630 | 12.7 | 616 | Yes |
| Taxi, Motorcycle and Other means | 360 | 1.0 | 77 | 216 | 0.6 | 165 | 327 | 0.9 | 147 | No |
| Worked at Home | 1,230 | 3.6 | 141 | 1,805 | 5.3 | 421 | 1,992 | 5.5 | 425 | 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 | 65,405 | 100.0 | -- | 63,967 | 100.0 | 2,011 | 66,719 | 100.0 | 1,840 | -- |
| Drove alone | 52,795 | 80.7 | 393 | 50,042 | 78.2 | 1,921 | 53,012 | 79.5 | 1,806 | No |
| 2-person Carpool | 5,415 | 8.3 | 285 | 5,066 | 7.9 | 646 | 4,505 | 6.8 | 583 | Yes |
| 3-or-more-person Carpool | 800 | 1.2 | 114 | 890 | 1.4 | 306 | 747 | 1.1 | 267 | No |
| Transit | 1,245 | 1.9 | 141 | 1,315 | 2.1 | 370 | 1,097 | 1.6 | 283 | No |
| Bike | 380 | 0.6 | 79 | 774 | 1.2 | 215 | 615 | 0.9 | 161 | Yes |
| Walked | 3,120 | 4.8 | 220 | 3,888 | 6.1 | 541 | 4,416 | 6.6 | 609 | Yes |
| Taxi, Motorcycle and Other means | 420 | 0.6 | 83 | 187 | 0.3 | 100 | 335 | 0.5 | 135 | No |
| Worked at Home | 1,230 | 1.9 | 141 | 1,805 | 2.8 | 421 | 1,992 | 3.0 | 425 | 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) | 18.7 | 0.5 | 17.6 | 1.4 | 17.6 | 1.0 | No |
| Drove alone | 18.0 | 0.5 | 17.0 | 1.8 | 17.7 | 1.5 | No |
| Carpooled | 20.9 | 1.6 | 19.3 | 5.4 | 21.0 | 6.4 | No |
| Transit | 35.0 | 2.9 | 35.5 | 15.0 | 33.4 | 12.4 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 15.4 | 1.2 | 14.6 | 3.0 | 12.9 | 2.6 | 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
