Petaluma, CA Profile: Facts & Data


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Petaluma, California - Basic Facts

The City of Petaluma had a population of 61,479 as of July 1, 2018. Petaluma ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for Petaluma is located at latitude 38.2423 and longitude -122.6286 in Sonoma County. The formal boundaries for the City of Petaluma (see map below) encompass a land area of 14.38 sq. miles and a water area of 0.11 sq. miles. Sonoma County is in the Pacific time zone (GMT -8). The elevation is 30 feet.

The City of Petaluma (GNIS ID: 2411407) 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 Petaluma is located within Petaluma CCD of Sonoma County.

Alternate Unofficial Names for Petaluma: Chickaluma, Petaloma.

Jump to... (On This Page!)
  1. Petaluma 2018 Demographic Data
  2. Growth Rates for Petaluma (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 - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Petaluma, CA Data & Demographics (As of July 1, 2018)


Total Population 61,479
Population in Households 60,754
Population in Familes 49,329
Population in Group Qrtrs 725
Population Density2 4,275
Diversity Index3 61


Median Household Income $84,033
Average Household Income $110,655
Per Capita Income $41,538


Total Housing Units 23,559 (100%)
Owner Occupied HU 15,258 (64.8%)
Renter Occupied HU 7,533 (32.0%)
Vacant Housing Units 768 ( 3.3%)
Median Home Value $583,356
Average Home Value $658,628


Total Households 22,791
Average Household Size 2.67
Family Households 15,449
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2018 2018-2023
Population 0.72% 0.08%
Households 0.58% -0.04%
Families 0.6% -0.09%
Median Household Income   3.04%
Per Capita Income   3.18%

Petaluma, CA - Peer Comparisons by Rank and Percentile

The table below compares Petaluma to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2018 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 # 156 90th
Population Density # 293 81st
Diversity Index # 822 46th
Median Household Income # 355 77th
Per Capita Income # 375 75th

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

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