94931 Zip Code Income, Population and Demographics

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In this article, we'll explore most of the 190+ data points we have for 94931, covering popular demographics statistics like household income, race, age and gender, educational attainment, poverty, housing, and transportation.

94931 is a zip code in Sonoma County, California, which covers Petaluma CCD and Sebastopol, with a total population of 8,945 people.

The data on this page is from the 2022 American Community Survey (ACS) 5-Year survey from the US Census Bureau.

Median Household Income

According to the latest ACS 5-year survey in 2022, the median household income in 94931 is $98,475.00.

The chart below shows the average household income by age in 94931.

• Under 25
  $46,236.00
• 25 to 44
  $100,875.00
• 45 to 64
  $127,200.00
• 65 and over
  $66,503.00

Average Household Income

A very commonly asked question is "what is the average household income in the 94931 zip code?". The official term for the average household income is the mean household income. The mean household income is the total income of all households divided by the number of households.

The average (or mean) household income in 94931 is $118,492.00.

15.78% of households in the 94931 zip code are classed as high income households (making $200,000+ per year).

Household Income Tiers for 94931

We can also look at the household income tiers. This lets you see how many households fall into each of the earnings brackets and what percentage that bracket is of the total number of households.

The chart below shows the household income brackets to see which age groups have the highest median income. The actual data is more granular than these brackets, but we've simplified them into bigger categories to make reviewing the data for the 94931 zip code easier to view.

You can purchase the raw data above, which will have the full income tiers with smaller jumps in household income.

• Less than $24,999
  9.70%
• $25,000 to $49,999
  16.36%
• $50,000 to $74,999
  12.66%
• $75,000 to $99,999
  12.08%
• $100,000 to $149,999
  20.64%
• $150,000 to $199,999
  12.77%
• $200,000 or more
  15.78%

Per Capita Income

The per capita income is the average income of all people in the 94931 zip code. This is calculated by dividing the total income of all people in 94931 by the total number of people in 94931.

It differs from the average or mean household income because it includes all people in 94931 and not just the people who earn an income (i.e. children, retirees, unemployed, etc.).

The per capita income in the 94931 zip code is $50,954.00.

Population in 94931 by Race and Ethnicity

The total population in 94931 is currently 8,945 people.

The race and ethnicity of the population in 94931 can be very important for social research, economics, and marketing to a multi-culturial society.

Whether you want to target products or services to a particular race or ethnicity, or provide housing and new businesses to improve areas with a larger ethnic minority population, this data is very valuable for discovering suitable areas.

The chart below breaks down the population and percentage for each race and ethnicity in the 94931 zip code.

• 4.90% White
  438
• 82.10% Black/African American
  7,342
• 72.60% Native
  6,493
• 11.50% Hispanic
  1,032
• 0.60% Asian
  56
• 0.00% Hawaiian/Pacific Islander
  3
• 0.20% Two or more races
  17
• 1.40% Other
  123

Population of 94931 by Age and Gender

Another very important demographics statistic for the 94931 zip code is the age and gender of the population. The age and gender of the population can be used to track trends in population growth or decline, and for businesses, the data can be used to identify people important to you and your business need.

In the table below, we show age groups at a 10 year granularity for ease of use. The raw data, which can be purchased above, includes age and gender at a 5 year granularity.

Education Levels

Educational attainment is a very useful statistic that can give insights into other data such as the average household income, unemployment levels, and literacy.

What this means is that it is likely for areas that have higher levels of education to have higher average household incomes, lower unemployment rates, and higher literacy rates.

The chart below shows the educational attainment of the population in the 94931 zip code.

• Master's degree or higher
  11.49%
• Bachelor's degree
  43.67%
• Some college or associate's degree
  16.53%
• High school diploma or equivalent
  27.14%
• Less than high school diploma
  1.17%

Unemployment Rates

The unemployment rate is the percentage of the population that is actively looking for work but is unable to find a job. The unemployment rate is a very important statistic for 94931 because it can show how many people are actively looking for work and how many people are unable to find a job.

Lower levels of unemployment is generally seen as a positive sign for the economy. It also makes the government in 94931 look good because it shows that they are doing a good job of creating jobs, working to capacity, being efficient, and keeping the economy strong.

The unemployment rate is calculated using the total population in the 94931 zip code that are over the age of 16.

The current population in 94931 that are over the age of 16 is 7,526 people.

The unemployment rate in 94931 is 4.70%, which means 240 people are unemployed.

Median Age in 94931

The median age is an interesting metric because it gives us an idea of the age distribution of people in the 94931 zip code. You know when you see a median age that it is the age where half of the population is older and half is younger than it.

For demographic studies, this can be used to infer and compare date to things such as birth rates, the age of parents, and so on.

An increasing median age can be a sign of an aging population, which can be a sign of a declining population. This is because older people tend to have fewer children and die more often than younger people.

The median age in 94931 is 40.1 years old.

We can also look at the median age by gender to compare the see how each group compares to the total median age:

Median age by gender in 94931

40.1

Total

37.8

Male

43.4

Female

Households and Families

There are a total of 3,783 households in 94931, and the average household size is 2.36 people.

For families, the total number is 2,136, and the average family size is 3.09 people.

2.20% of those families in the 94931 zip code are living below the poverty line.

The table below shows the poverty thresholds for 94931 in .

Households and Families by Marital Status

There are four types of household and family, as defined by the Census Bureau:

• Married-couple
• Male householder, no spouse present
• Female householder, no spouse present
• Nonfamily household

In the table below, you can see the total households and families in the 94931 zip code for each type, as well as the average sizes.

Housing Data in 94931

There are total of 3,933 housing units in the 94931 zip code. Of those units, 3,783 (96.19%) are occupied, and 150 (3.81%) are vacant.

Rental Rates

Of the 3,933 housing units in 94931, 1,396 (35.49%) are occupied by renters. The median rent paid by renters is $1,708.00.

Owner occupied housing units make up the remaining 57.92% of housing units, with 2,278 housing units in total.

The table below breaks down how much rent is paid by renters in the 94931 zip code.

• No rent paid
  109
• Less than $500
  289
• $500 to $999
  18
• $1,000 to $1,499
  277
• $1,500 to $1,999
  274
• $2,000 to $2,499
  245
• $2,500 to $2,999
  152
• $3,000 or more
  141

Property Values

The median value of a property in 94931 is $720,400.00.

The table below breaks down the range of valuations for all properties in 94931.

• Less than $50,000
  46
• $50,000 to $99,999
  10
• $100,000 to $149,999
  86
• $150,000 to $199,999
  33
• $200,000 to $299,999
  36
• $300,000 to $499,999
  310
• $500,000 to $999,999
  1,320
• $1,000,000 or more
  437

Property Age

We can also look at the number of properties built in a given year to see the spread of property age in the 94931 zip code.

• 1939 or earlier
  107
• 1940 to 1949
  69
• 1950 to 1959
  475
• 1960 to 1969
  232
• 1970 to 1979
  915
• 1980 to 1989
  1,108
• 1990 to 1999
  483
• 2000 to 2009
  424
• 2010 to 2013
  93
• 2014 or later
  27

Vehicles Available per Household

Finally, we have data on how many vehicles each household in 94931 has. The table below breaks down the number of vehicles available per household.

• No vehicles available
  101
• 1 vehicle available
  1,221
• 2 vehicles available
  1,590
• 3 or more vehicles available
  871

Commuting to Work in 94931

The time and means of commuting to work are useful metrics to look at because they can be correlated against other data such as income and education level.

Does a longer commuting time indicate a higher average income? If so, has the huge increase in home working during the pandemic changed this?

Using these metrics, we can get a better understanding of the demographics of the 94931 zip code, how they commute, and how that correlates to other data points.

The average travel time is 27.8 minutes, and the chart below covers the range of travel times across the population of 94931.

• Less than 5 minutes
  48
• 5 to 9 minutes
  301
• 10 to 14 minutes
  716
• 15 to 19 minutes
  716
• 20 to 24 minutes
  529
• 25 to 29 minutes
  150
• 30 to 34 minutes
  641
• 35 to 39 minutes
  117
• 40 to 44 minutes
  117
• 45 to 59 minutes
  460
• 60 to 89 minutes
  351
• 90 or more minutes
  102

We can also look at the means of transport in 94931 to see which modes of transport people are using to commute to work.

• Drove alone
  3,587
• Carpooled
  341
• Public transportation
  151
• Walked
  38
• Other means
  131
• Worked from home
  607

Conclusion

Hopefully this article has given you the demographics data you were looking for in the 94931 zip code.

If you need more demographics data, or you need the data listed above in spreadsheet form with more granular grouping, head back to the top of this page where you can purchase the complete demographics data for 94931.

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