Atascadero, CA Profile: Facts & Data


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Atascadero, California - Basic Facts

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The City of Atascadero had a population of 30,112 as of July 1, 2021.

The primary coordinate point for Atascadero is located at latitude 35.4894 and longitude -120.6707 in San Luis Obispo County. The formal boundaries for the City of Atascadero encompass a land area of 25.71 sq. miles and a water area of 0.41 sq. miles. San Luis Obispo County is in the Pacific time zone (GMT -8). The elevation is 879 feet.

The City of Atascadero has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Atascadero is located within Atascadero CCD of San Luis Obispo County.

Jump to... (On This Page!)
  1. Atascadero 2021 Demographic Data
  2. Growth Rates for Atascadero (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. California Research Tools (Easy Tools & Current Data)
  3. California Data Comparison Tool - 2021 Demographics

Atascadero, CA Data & Demographics (As of July 1, 2021)


Total Population 30,112 (100%)
Population in Households 28,768 (95.5%)
Population in Families 23,180 (77.0%)
Population in Group Quarters1 1,344 ( 4.5%)
Population Density 1,155
Diversity Index2 50


Median Household Income $82,132
Average Household Income $102,747
% of Income for Mortgage4 30%
Per Capita Income $39,371
Wealth Index5 118


Total HU (Housing Units) 12,231 (100%)
Owner Occupied HU 7,817 (63.9%)
Renter Occupied HU 3,523 (28.8%)
Vacant Housing Units 891 ( 7.3%)
Median Home Value $582,573
Average Home Value $604,835
Housing Affordability Index3 83


Total Households 11,340
Average Household Size 2.54
Family Households 7,778
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 0.55% 0.59%
Households 0.49% 0.59%
Families 0.44% 0.55%
Median Household Income   2.2%
Per Capita Income   2.42%
Owner Occupied HU   0.83%

Atascadero, CA - Peer Comparisons by Rank and Percentile

The table below compares Atascadero to the other 1,521 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 265 83rd
Population Density # 739 51st
Median Household Income # 483 68th
Housing Affordability Index # 718 47th
Per Capita Income # 540 65th
Diversity Index # 1033 32nd

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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