91731 Zip Code Historical Age Data
ACS 2010-2014 data
Total population: 29,209
Median Age (
see rank)
| 91731 Zip Code | 36.30 years old |
| California | 35.60 years old |
| U.S. | 37.40 years old |
Median Age, Male (
see rank)
| 91731 Zip Code | 34.70 years old |
| California | 34.50 years old |
| U.S. | 36.10 years old |
Median Age, Female (
see rank)
| 91731 Zip Code | 38.40 years old |
| California | 36.80 years old |
| U.S. | 38.80 years old |
| | 91731 Zip Code | % of the Total Population | California | U.S. |
| Under 5 years | 1,389 | 4.76%, see rank | 6.62% | 6.36% |
| 5 to 9 years | 2,070 | 7.09%, see rank | 6.65% | 6.51% |
| 10 to 14 years | 1,890 | 6.47%, see rank | 6.70% | 6.59% |
| 15 to 19 years | 2,039 | 6.98%, see rank | 7.12% | 6.85% |
| 20 to 24 years | 1,885 | 6.45%, see rank | 7.58% | 7.13% |
| 25 to 34 years | 4,771 | 16.33%, see rank | 14.48% | 13.47% |
| 35 to 44 years | 4,305 | 14.74%, see rank | 13.60% | 12.96% |
| 45 to 54 years | 3,456 | 11.83%, see rank | 13.79% | 14.09% |
| 55 to 64 years | 3,301 | 11.30%, see rank | 11.32% | 12.29% |
| 65 to 74 years | 2,145 | 7.34%, see rank | 6.71% | 7.64% |
| 75 to 84 | 1,362 | 4.66%, see rank | 3.72% | 4.25% |
| 85 years and over | 596 | 2.04%, see rank | 1.70% | 1.85% |
US Census 2010 data
Total population: 29,591
Median Age (
see rank)
| 91731 Zip Code | 32.90 years old |
| California | 35.20 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| 91731 Zip Code | 31.40 years old |
| California | 34.00 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| 91731 Zip Code | 34.60 years old |
| California | 36.30 years old |
| U.S. | 38.50 years old |
| | 91731 Zip Code | % of the Total Population | California | U.S. |
| Under 5 years | 2,221 | 7.51%, see rank | 6.79% | 6.54% |
| 5 to 9 years | 2,122 | 7.17%, see rank | 6.73% | 6.59% |
| 10 to 14 years | 2,174 | 7.35%, see rank | 6.95% | 6.70% |
| 15 to 19 years | 2,424 | 8.19%, see rank | 7.58% | 7.14% |
| 20 to 24 years | 2,326 | 7.86%, see rank | 7.42% | 6.99% |
| 25 to 34 years | 4,327 | 14.62%, see rank | 14.27% | 13.30% |
| 35 to 44 years | 4,089 | 13.82%, see rank | 13.91% | 13.30% |
| 45 to 54 years | 3,603 | 12.18%, see rank | 14.10% | 14.58% |
| 55 to 64 years | 2,879 | 9.73%, see rank | 10.84% | 11.82% |
| 65 to 74 years | 1,739 | 5.88%, see rank | 6.11% | 7.03% |
| 75 to 84 | 1,179 | 3.98%, see rank | 3.68% | 4.23% |
| 85 years and over | 508 | 1.72%, see rank | 1.61% | 1.78% |
ACS 2008-2012 data
Total population: 29,703
Median Age (
see rank)
| 91731 Zip Code | 33.80 years old |
| California | 35.20 years old |
| U.S. | 37.20 years old |
Median Age, Male (
see rank)
| 91731 Zip Code | 32.20 years old |
| California | 34.10 years old |
| U.S. | 35.80 years old |
Median Age, Female (
see rank)
| 91731 Zip Code | 35.90 years old |
| California | 36.40 years old |
| U.S. | 38.50 years old |
| | 91731 Zip Code | % of the Total Population | California | U.S. |
| Under 5 years | 1,886 | 6.35%, see rank | 6.82% | 6.51% |
| 5 to 9 years | 2,039 | 6.86%, see rank | 6.71% | 6.57% |
| 10 to 14 years | 2,060 | 6.94%, see rank | 6.91% | 6.68% |
| 15 to 19 years | 2,320 | 7.81%, see rank | 7.47% | 7.09% |
| 20 to 24 years | 2,312 | 7.78%, see rank | 7.49% | 7.04% |
| 25 to 34 years | 4,675 | 15.74%, see rank | 14.32% | 13.32% |
| 35 to 44 years | 4,226 | 14.23%, see rank | 13.93% | 13.34% |
| 45 to 54 years | 3,446 | 11.60%, see rank | 14.00% | 14.44% |
| 55 to 64 years | 3,387 | 11.40%, see rank | 10.85% | 11.84% |
| 65 to 74 years | 1,738 | 5.85%, see rank | 6.20% | 7.12% |
| 75 to 84 | 1,050 | 3.53%, see rank | 3.70% | 4.25% |
| 85 years and over | 564 | 1.90%, see rank | 1.62% | 1.78% |
US Census 2000 data
Total population: 30,206
Median Age (
see rank)
| 91731 Zip Code | 27.70 years old |
| California | 33.30 years old |
| U.S. | 35.30 years old |
Median Age, Male (
see rank)
| 91731 Zip Code | 27.10 years old |
| California | 32.20 years old |
| U.S. | 34.00 years old |
Median Age, Female (
see rank)
| 91731 Zip Code | 28.20 years old |
| California | 34.40 years old |
| U.S. | 36.50 years old |
| | 91731 Zip Code | % of the Total Population | California | U.S. |
| Under 5 years | 2,993 | 9.91%, see rank | 7.34% | 6.81% |
| 5 to 9 years | 2,984 | 9.88%, see rank | 8.05% | 7.30% |
| 10 to 14 years | 2,608 | 8.63%, see rank | 7.59% | 7.29% |
| 15 to 19 years | 2,490 | 8.24%, see rank | 7.24% | 7.18% |
| 20 to 24 years | 2,583 | 8.55%, see rank | 7.03% | 6.74% |
| 25 to 34 years | 5,277 | 17.47%, see rank | 15.44% | 14.18% |
| 35 to 44 years | 4,168 | 13.80%, see rank | 16.19% | 16.04% |
| 45 to 54 years | 3,008 | 9.96%, see rank | 12.79% | 13.39% |
| 55 to 64 years | 1,738 | 5.75%, see rank | 7.72% | 8.63% |
| 65 to 74 years | 1,330 | 4.40%, see rank | 5.57% | 6.54% |
| 75 to 84 | 805 | 2.67%, see rank | 3.79% | 4.39% |
| 85 years and over | 222 | 0.73%, see rank | 1.26% | 1.51% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.
