|Contra Costa County and the state of California|
|• County Board||District 1:
|• State Senate||Loni Hancock (D)1|
|• State Assembly||Nancy Skinner (D)2|
|• U. S. Congress||George Miller (D)3|
|• Total||0.166 sq mi (0.430 km2)|
|• Land||0.166 sq mi (0.430 km2)|
|• Water||0 sq mi (0 km2) 0%|
|Elevation5||75 ft (23 m)|
|• Density||18,000/sq mi (6,900/km2)|
|Time zone||PST (UTC-8)|
|• Summer (DST)||PDT (UTC-7)|
|GNIS feature IDs||1853411, 2409202|
According to the United States Census Bureau, the CDP has a total area of 0.2 square miles (0.52 km2), all of it land.
The 2010 United States Census6 reported that Rollingwood had a population of 2,969. The population density was 17,864.2 people per square mile (6,897.4/km²). The racial makeup of Rollingwood was 1,130 (38.1%) White, 220 (7.4%) African American, 28 (0.9%) Native American, 534 (18.0%) Asian, 22 (0.7%) Pacific Islander, 907 (30.5%) from other races, and 128 (4.3%) from two or more races. Hispanic or Latino of any race were 1,836 persons (61.8%).
The Census reported that 99.8% of the population lived in households and 0.2% were institutionalized.
There were 729 households, out of which 398 (54.6%) had children under the age of 18 living in them, 438 (60.1%) were opposite-sex married couples living together, 129 (17.7%) had a female householder with no husband present, 57 (7.8%) had a male householder with no wife present. There were 29 (4.0%) unmarried opposite-sex partnerships, and 7 (1.0%) same-sex married couples or partnerships. 70 households (9.6%) were made up of individuals and 35 (4.8%) had someone living alone who was 65 years of age or older. The average household size was 4.06. There were 624 families (85.6% of all households); the average family size was 4.31.
The population was spread out with 848 people (28.6%) under the age of 18, 366 people (12.3%) aged 18 to 24, 836 people (28.2%) aged 25 to 44, 669 people (22.5%) aged 45 to 64, and 250 people (8.4%) who were 65 years of age or older. The median age was 31.1 years. For every 100 females there were 97.5 males. For every 100 females age 18 and over, there were 99.0 males.
There were 776 housing units at an average density of 4,669.1 per square mile (1,802.8/km²), of which 493 (67.6%) were owner-occupied, and 236 (32.4%) were occupied by renters. The homeowner vacancy rate was 1.8%; the rental vacancy rate was 6.3%. 1,945 people (65.5% of the population) lived in owner-occupied housing units and 1,018 people (34.3%) lived in rental housing units.
As of the census7 of 2000, there were 2,900 people, 734 households, and 629 families residing in the CDP. The population density was 14,036.3 people per square mile (5,331.9/km²). There were 757 housing units at an average density of 3,664.0 per square mile (1,391.8/km²). The racial makeup of the CDP was 33.14% White, 10.41% Black or African American, 1.10% Native American, 23.79% Asian, 0.45% Pacific Islander, 24.52% from other races, and 6.59% from two or more races. 42.24% of the population were Hispanic or Latino of any race.
There were 734 households out of which 51.1% had children under the age of 18 living with them, 59.3% were married couples living together, 20.4% had a female householder with no husband present, and 14.2% were non-families. 11.7% of all households were made up of individuals and 6.1% had someone living alone who was 65 years of age or older. The average household size was 3.94 and the average family size was 4.23.
In the CDP the population was spread out with 33.3% under the age of 18, 10.6% from 18 to 24, 29.8% from 25 to 44, 17.4% from 45 to 64, and 9.0% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 96.1 males. For every 100 females age 18 and over, there were 93.1 males.
The median income for a household in the CDP was $48,229, and the median income for a family was $51,875. Males had a median income of $31,048 versus $27,500 for females. The per capita income for the CDP was $13,428. About 12.0% of families and 12.8% of the population were below the poverty line, including 15.7% of those under age 18 and 6.0% of those age 65 or over.
- "Senators". State of California. Retrieved April 1, 2013.
- "Members Assembly". State of California. Retrieved April 1, 2013.
- "California's 11th Congressional District - Representatives & District Map". Civic Impulse, LLC. Retrieved March 9, 2013.
- U.S. Census
- "Rollingwood". Geographic Names Information System, U.S. Geological Survey.
- All data are derived from the United States Census Bureau reports from the 2010 United States Census, and are accessible on-line here. The data on unmarried partnerships and same-sex married couples are from the Census report DEC_10_SF1_PCT15. All other housing and population data are from Census report DEC_10_DP_DPDP1. Both reports are viewable online or downloadable in a zip file containing a comma-delimited data file. The area data, from which densities are calculated, are available on-line here. Percentage totals may not add to 100% due to rounding. The Census Bureau defines families as a household containing one or more people related to the householder by birth, opposite-sex marriage, or adoption. People living in group quarters are tabulated by the Census Bureau as neither owners nor renters. For further details, see the text files accompanying the data files containing the Census reports mentioned above.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.