Download an Excel file* of this document: profile_michigan__troy_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 | 80,959 | -- | 80,356 | 43 | 80,980 | 81,616 | 45 | -- |
| Persons in Households 2 | 80,723 | 62 | -- | -- | 80,670 | 81,355 | -- | -- |
| Total Households 3 | 30,043 | 115 | 30,062 | 598 | 30,703 | 30,382 | 650 | No |
| Average Number of Persons per Household 4 | 2.69 | 0.02 | 2.67 | 0.05 | 2.63 | 2.68 | 0.06 | No |
| Average Household Income 5 | $96,405 | $1,672 | $107,037 | $5,118 | -- | $102,460 | $5,137 | Yes |
| Average Number of Vehicles per Household 6 | 1.96 | 0.03 | 1.95 | 0.06 | -- | 1.91 | 0.06 | No |
| Percent of Persons in Poverty 7 | 2.70 | 0.20 | 5.60 | 1.41 | -- | 7.70 | 1.40 | Yes |
| Percent Minority 8 | 17.50 | 0.50 | 23.80 | 1.22 | 25.90 | 27.00 | 1.63 | Yes |
| Percent of Persons 65 and Over 9 | 10.20 | 0.40 | 12.20 | 0.90 | 13.80 | 14.20 | 0.89 | Yes |
| Percent of Persons Foreign Born 10 | 19.60 | 0.60 | 24.00 | 1.97 | -- | 26.80 | 1.62 | Yes |
| Total Workers at Place of Residence11 | 42,041 | 575 | 40,664 | 1,479 | -- | 38,541 | 1,037 | 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 | 41,435 | 100.0 | 575 | 38,277 | 100.0 | 1,127 | -- | 100.0 | -- | -- |
| Drove alone | 37,275 | 90.0 | 574 | 33,247 | 86.9 | 1,130 | -- | -- | -- | -- |
| 2-person Carpool | 1,975 | 4.8 | 178 | 2,018 | 5.3 | 453 | -- | -- | -- | -- |
| 3-or-more-person Carpool | 365 | 0.9 | 77 | 679 | 1.8 | 287 | -- | -- | -- | -- |
| Transit | 130 | 0.3 | 46 | 172 | 0.4 | 76 | -- | -- | -- | -- |
| Bike | 50 | 0.1 | 29 | 108 | 0.3 | 73 | -- | -- | -- | -- |
| Walked | 260 | 0.6 | 65 | 185 | 0.5 | 130 | -- | -- | -- | -- |
| Taxi, Motorcycle and Other means | 180 | 0.4 | 54 | 169 | 0.4 | 87 | -- | -- | -- | -- |
| Worked at Home | 1,200 | 2.9 | 139 | 1,699 | 4.4 | 353 | -- | -- | -- | -- |
| 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 | 105,545 | 100.0 | -- | 86,524 | 100.0 | 2,728 | 83,273 | 100.0 | 2,503 | -- |
| Drove alone | 95,890 | 90.9 | -- | 77,330 | 89.4 | 2,489 | 74,866 | 89.9 | 2,346 | -- |
| 2-person Carpool | 5,530 | 5.2 | 290 | 5,281 | 6.1 | 817 | 4,341 | 5.2 | 705 | Yes |
| 3-or-more-person Carpool | 1,175 | 1.1 | 138 | 912 | 1.1 | 272 | 924 | 1.1 | 242 | No |
| Transit | 839 | 0.8 | 117 | 564 | 0.7 | 196 | 793 | 1.0 | 226 | No |
| Bike | 60 | 0.1 | 31 | 98 | 0.1 | 71 | 151 | 0.2 | 109 | No |
| Walked | 395 | 0.4 | 80 | 391 | 0.5 | 194 | 445 | 0.5 | 138 | No |
| Taxi, Motorcycle and Other means | 455 | 0.4 | 86 | 249 | 0.3 | 121 | 327 | 0.4 | 166 | No |
| Worked at Home | 1,200 | 1.1 | 139 | 1,699 | 2.0 | 353 | 1,426 | 1.7 | 318 | No |
| 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) | 24.5 | 0.4 | 24.4 | 1.3 | -- | -- | -- |
| Drove alone | 24.5 | 0.4 | 24.1 | 1.4 | -- | -- | -- |
| Carpooled | 24.1 | 1.6 | 28.0 | 8.2 | -- | -- | -- |
| Transit | 48.3 | 10.5 | 42.0 | 27.5 | -- | -- | -- |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 22.2 | 5.0 | 21.3 | 14.6 | -- | -- | -- |
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
