Download an Excel file* of this document: profile_california__porterville_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 | 40,025 | -- | 51,561 | 54 | 54,165 | 54,691 | 35 | -- |
| Persons in Households 2 | 38,396 | 204 | 50,305 | -- | 53,018 | 53,346 | -- | -- |
| Total Households 3 | 11,963 | 138 | 15,197 | 736 | 15,644 | 15,749 | 519 | Yes |
| Average Number of Persons per Household 4 | 3.21 | 0.09 | 3.31 | 0.15 | 3.39 | 3.39 | 0.11 | Yes |
| Average Household Income 5 | $41,835 | $1,749 | $51,426 | $3,921 | -- | $55,363 | $4,818 | Yes |
| Average Number of Vehicles per Household 6 | 1.56 | 0.06 | 1.72 | 0.11 | -- | 1.79 | 0.09 | Yes |
| Percent of Persons in Poverty 7 | 25.70 | 1.10 | 23.90 | 4.12 | -- | 26.50 | 3.67 | No |
| Percent Minority 8 | 45.40 | 1.30 | 28.70 | 3.66 | 41.20 | 23.40 | 3.34 | Yes |
| Percent of Persons 65 and Over 9 | 9.40 | 0.80 | 8.80 | 1.14 | 9.40 | 10.40 | 1.15 | No |
| Percent of Persons Foreign Born 10 | 22.60 | 1.10 | 20.00 | 2.26 | -- | 19.30 | 2.05 | Yes |
| Total Workers at Place of Residence11 | 14,170 | 493 | 20,512 | 1,500 | -- | 19,609 | 963 | 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 | 13,715 | 100.0 | 489 | 19,998 | 100.0 | 1,046 | 19,118 | 100.0 | 963 | Yes |
| Drove alone | 9,670 | 70.5 | 441 | 14,075 | 70.4 | 1,081 | 15,012 | 78.5 | 924 | Yes |
| 2-person Carpool | 1,775 | 12.9 | 212 | 3,188 | 15.9 | 735 | 1,852 | 9.7 | 493 | No |
| 3-or-more-person Carpool | 1,035 | 7.5 | 164 | 915 | 4.6 | 312 | 1,397 | 7.3 | 486 | No |
| Transit | 170 | 1.2 | 67 | 224 | 1.1 | 166 | 156 | 0.8 | 98 | No |
| Bike | 80 | 0.6 | 46 | 240 | 1.2 | 166 | 89 | 0.5 | 86 | No |
| Walked | 290 | 2.1 | 87 | 273 | 1.4 | 168 | 102 | 0.5 | 59 | Yes |
| Taxi, Motorcycle and Other means | 339 | 2.5 | 94 | 528 | 2.6 | 378 | 178 | 0.9 | 171 | No |
| Worked at Home | 355 | 2.6 | 97 | 555 | 2.8 | 226 | 332 | 1.7 | 182 | No |
| 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 | 17,560 | 100.0 | 511 | 21,537 | 100.0 | 1,077 | 18,889 | 100.0 | 1,326 | No |
| Drove alone | 13,555 | 77.2 | 488 | 16,904 | 78.5 | 1,029 | 15,040 | 79.6 | 1,261 | Yes |
| 2-person Carpool | 2,000 | 11.4 | 224 | 2,285 | 10.6 | 505 | 1,825 | 9.7 | 335 | No |
| 3-or-more-person Carpool | 680 | 3.9 | 133 | 791 | 3.7 | 240 | 1,172 | 6.2 | 484 | No |
| Transit | 200 | 1.1 | 73 | 161 | 0.7 | 99 | 136 | 0.7 | 83 | No |
| Bike | 115 | 0.7 | 55 | 264 | 1.2 | 167 | 94 | 0.5 | 86 | No |
| Walked | 350 | 2.0 | 96 | 219 | 1.0 | 137 | 105 | 0.6 | 54 | Yes |
| Taxi, Motorcycle and Other means | 304 | 1.7 | 89 | 358 | 1.7 | 190 | 185 | 1.0 | 111 | No |
| Worked at Home | 355 | 2.0 | 97 | 555 | 2.6 | 226 | 332 | 1.8 | 182 | 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) | 20.9 | 1.1 | 21.3 | 2.4 | 22.3 | 2.6 | No |
| Drove alone | 18.2 | 1.1 | 18.9 | 2.5 | 20.6 | 2.5 | No |
| Carpooled | 29.8 | 2.9 | 26.0 | 7.9 | 28.9 | 10.3 | No |
| Transit | 28.0 | 13.0 | 40.7 | 41.6 | 45.7 | 40.7 | No |
| Taxi, Motorcycle, Walk, Bicycle and Other means | 21.7 | 5.5 | 31.8 | 25.1 | 26.2 | 23.1 | 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
