Download an Excel file* of this document: profile_iowa__black_hawk_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 | 128,012 | -- | 128,018 | -- | 131,090 | 131,472 | -- | -- |
| Persons in Households 2 | 121,553 | 317 | 121,820 | -- | 125,123 | 125,186 | -- | -- |
| Total Households 3 | 49,736 | 178 | 51,431 | 863 | 52,470 | 51,852 | 704 | Yes |
| Average Number of Persons per Household 4 | 2.44 | 0.02 | 2.37 | 0.03 | 2.38 | 2.41 | 0.03 | No |
| Average Household Income 5 | $47,680 | $785 | $54,347 | $1,996 | -- | $59,196 | $1,867 | Yes |
| Average Number of Vehicles per Household 6 | 1.85 | 0.03 | 1.86 | 0.06 | -- | 1.83 | 0.05 | No |
| Percent of Persons in Poverty 7 | 13.10 | 0.40 | 17.80 | 1.72 | -- | 16.30 | 1.36 | Yes |
| Percent Minority 8 | 11.60 | 0.40 | 12.90 | 0.29 | 14.40 | 13.80 | 0.39 | Yes |
| Percent of Persons 65 and Over 9 | 14.00 | 0.40 | 14.20 | 0.60 | 13.80 | 13.90 | 0.57 | No |
| Percent of Persons Foreign Born 10 | 3.70 | 0.20 | 4.10 | 0.70 | -- | 4.80 | 0.63 | Yes |
| Total Workers at Place of Residence11 | 64,200 | 724 | 63,660 | 1,614 | -- | 65,543 | 1,393 | No |
| 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 | 62,895 | 100.0 | 724 | 62,258 | 100.0 | 1,385 | 64,094 | 100.0 | 1,405 | No |
| Drove alone | 52,080 | 82.8 | 711 | 50,951 | 81.8 | 1,442 | 53,220 | 83.0 | 1,502 | No |
| 2-person Carpool | 4,490 | 7.1 | 266 | 4,635 | 7.4 | 688 | 4,197 | 6.5 | 562 | No |
| 3-or-more-person Carpool | 820 | 1.3 | 115 | 903 | 1.5 | 342 | 1,253 | 2.0 | 312 | Yes |
| Transit | 489 | 0.8 | 89 | 437 | 0.7 | 220 | 285 | 0.4 | 100 | Yes |
| Bike | 270 | 0.4 | 66 | 203 | 0.3 | 102 | 239 | 0.4 | 102 | No |
| Walked | 2,625 | 4.2 | 205 | 3,220 | 5.2 | 513 | 2,966 | 4.6 | 551 | No |
| Taxi, Motorcycle and Other means | 285 | 0.5 | 68 | 356 | 0.6 | 184 | 505 | 0.8 | 199 | Yes |
| Worked at Home | 1,835 | 2.9 | 172 | 1,553 | 2.5 | 282 | 1,429 | 2.2 | 263 | 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 | 70,895 | 100.0 | 720 | 72,061 | 100.0 | 1,488 | 73,743 | 100.0 | 1,455 | Yes |
| Drove alone | 59,150 | 83.4 | 722 | 59,691 | 82.8 | 1,526 | 61,845 | 83.9 | 1,440 | Yes |
| 2-person Carpool | 5,180 | 7.3 | 285 | 5,301 | 7.4 | 653 | 4,904 | 6.7 | 532 | No |
| 3-or-more-person Carpool | 985 | 1.4 | 126 | 1,067 | 1.5 | 345 | 1,454 | 2.0 | 335 | Yes |
| Transit | 435 | 0.6 | 84 | 457 | 0.6 | 222 | 299 | 0.4 | 102 | Yes |
| Bike | 270 | 0.4 | 66 | 203 | 0.3 | 102 | 237 | 0.3 | 99 | No |
| Walked | 2,735 | 3.9 | 209 | 3,299 | 4.6 | 528 | 2,947 | 4.0 | 561 | No |
| Taxi, Motorcycle and Other means | 300 | 0.4 | 70 | 490 | 0.7 | 157 | 628 | 0.9 | 224 | Yes |
| Worked at Home | 1,835 | 2.6 | 172 | 1,553 | 2.2 | 282 | 1,429 | 1.9 | 263 | 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) | 15.7 | 0.3 | 15.2 | 0.6 | 16.0 | 0.8 | No |
| Drove alone | 15.4 | 0.3 | 15.2 | 0.7 | 16.3 | 1.0 | No |
| Carpooled | 18.9 | 1.1 | 16.8 | 3.6 | 17.4 | 3.4 | No |
| Transit | 29.6 | 4.6 | 33.6 | 25.2 | 33.3 | 23.1 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 12.0 | 1.4 | 10.5 | 2.4 | 8.7 | 2.2 | Yes |
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
