USA.com / California / Contra Costa County / Census Tract 345105 / Block Group 345105-1 / Population and Races
Census Block Group 345105-1 in Contra Costa County, California Population and Races
Hot Rankings
As of 2010-2014, the total population of Block Group 345105-1 is 3,931. The most prevalent race in Block Group 345105-1 is white, which represent 77.29% of the total population.
Population in 2010-2014: 3,931. see rank
Population by Races
Hispanic Population
Asian Population
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*Based on 2010 data.
Population by Gender
Male: 2,009 (51.11%, see rank)
Females: 1,922 (48.89%, see rank)
| Block Group 345105-1 | Male: 51.11% Female: 48.89% |
| California | Male: 49.68% Female: 50.32% |
| U.S. | Male: 49.19% Female: 50.81% |
*Based on 2010-2014 data.
Population by Age
Median Age (see rank)| Block Group 345105-1 | 42.20 years old |
| California | 35.60 years old |
| U.S. | 37.40 years old |
Median Age, Male (see rank)
| Block Group 345105-1 | 39.00 years old |
| California | 34.50 years old |
| U.S. | 36.10 years old |
Median Age, Female (see rank)
| Block Group 345105-1 | 43.90 years old |
| California | 36.80 years old |
| U.S. | 38.80 years old |
| Block Group 345105-1 | % of the Total Population | California | U.S. | |
| Under 5 years | 305 | 7.76%, see rank | 6.62% | 6.36% |
| 5 to 9 years | 328 | 8.34%, see rank | 6.65% | 6.51% |
| 10 to 14 years | 313 | 7.96%, see rank | 6.70% | 6.59% |
| 15 to 19 years | 269 | 6.84%, see rank | 7.12% | 6.85% |
| 20 to 24 years | 132 | 3.36%, see rank | 7.58% | 7.13% |
| 25 to 34 years | 401 | 10.20%, see rank | 14.48% | 13.47% |
| 35 to 44 years | 391 | 9.95%, see rank | 13.60% | 12.96% |
| 45 to 54 years | 523 | 13.30%, see rank | 13.79% | 14.09% |
| 55 to 64 years | 629 | 16.00%, see rank | 11.32% | 12.29% |
| 65 to 74 years | 143 | 3.64%, see rank | 6.71% | 7.64% |
| 75 to 84 | 305 | 7.76%, see rank | 3.72% | 4.25% |
| 85 years and over | 192 | 4.88%, see rank | 1.70% | 1.85% |
*Based on 2010-2014 data.
Household and Family
| Block Group 345105-1 | California | U.S. | |
| Total Households | 1,076, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.65, see rank | 2.90 | 2.58 |
| 1 Person Households | 231, 21.47%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 845, 78.53%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 774, 71.93%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.11, see rank | 3.45 | 3.14 |
| Married-Couple Family | 592, 55.02%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 302, 28.07%, see rank | 31.29% | 33.57% |
*Based on 2010 data.
Marital Status of 15 Years and Over
| Block Group 345105-1 | % | California | U.S. | |
| 15 Years and Over Total | 2,985 | see rank | 30,462,253 | 252,974,135 |
| Males, 15 Years and Over | 1,475 | 100%, see rank | 15,026,838 | 123,281,364 |
| Never Married | 518 | 35.12%, see rank | 39.95% | 35.77% |
| Married | 746 | 50.58%, see rank | 49.84% | 52.04% |
| Widowed | 91 | 6.17%, see rank | 2.14% | 2.57% |
| Divorced | 120 | 8.14%, see rank | 8.07% | 9.62% |
| Females, 15 Years and Over | 1,510 | 100%, see rank | 15,435,415 | 129,692,771 |
| Never Married | 391 | 25.89%, see rank | 32.75% | 29.48% |
| Married | 738 | 48.87%, see rank | 48.11% | 49.19% |
| Widowed | 239 | 15.83%, see rank | 7.96% | 9.16% |
| Divorced | 142 | 9.40%, see rank | 11.18% | 12.16% |
*Based on 2010-2014 data.
Language Spoken at Home
| Block Group 345105-1 | % | California | U.S. | |
| English | 904 | 73.86%, see rank | 57.63% | 79.39% |
| Spanish | 24 | 1.96%, see rank | 25.11% | 11.75% |
| Other Indo-European Languages | 141 | 11.52%, see rank | 5.77% | 4.52% |
| Asian and Pacific Islander Languages | 142 | 11.60%, see rank | 10.40% | 3.36% |
| Other | 13 | 1.06%, see rank | 1.09% | 0.99% |
*Based on 2010-2014 data.