Columbia, CA demographics:
population, income, and more

Total population
2,235
-15.5% year-over-year change
Median household income
$58,520/yr
1.5% year-over-year change
Housing units
1,276
-4.6% year-over-year change

Columbia population

How many people live in Columbia

Columbia is home to 2,235 residents, according to the most recent Census data. Gender-wise, 49.7% of Columbia locals are male, and 50.3% are female.

Total population
2,235
-15.5% year-over-year change
Gender ratio
Male
49.7%
1,111
Female
50.3%
1,124
Value Percent YoY change
Male 1,111 49.7% -12.4%
Female 1,124 50.3% -18.3%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Columbia is 50, with the population distributed as follows: about 14.4% are children under 15, then 11.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 20% of the population, while another 21% fall into the 45 to 64 bracket. Finally, around 32.7% are 65 or older.

Median age
49.8
Age breakdown
Under 15
14.4%
15 to 24
11.9%
25 to 44
20%
45 to 64
21%
Over 65
32.7%
Value Percent YoY change
Under 15 321 14.4% -21.7%
15 to 24 266 11.9% -18.4%
25 to 44 448 20% -15.2%
45 to 64 470 21% -5.8%
Over 65 730 32.7% -17.2%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Columbia, 94.1% of the population are US-born citizens, while 4.4% have gained naturalized citizenship. At the same time, 1.5% of residents are non-citizens. As for race, 81% of locals are Caucasian, 1.1% are African American and 3.1% have Asian roots. There’s also a share of 8.9% that includes residents with two or more races.

Citizenship
U.S.-born citizens
94.1%
Non-U.S.-born citizens
4.4%
Non-citizens
1.5%
Value Percent YoY change
U.S.-born citizens 2,103 94.1% -13.4%
Non-U.S.-born citizens 99 4.4% -45.3%
Non-citizens 33 1.5% -8.3%
Racial breakdown
White
81%
Black or African American
1.1%
American Indian and Alaska Native
0.2%
Asian
3.1%
Native Hawaiian and other Pacific Islander
0%
Two or more races
8.9%
Other
5.7%
Value Percent
White 1,810 81%
Black or African American 25 1.1%
American Indian and Alaska Native 4 0.2%
Asian 70 3.1%
Two or more races 199 8.9%
Other 127 5.7%

Households in Columbia

A peek inside Columbia households

Columbia has 993 households, with an average of 2 members in each. Of these, 69.2% are families, while the remaining 30.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
993
-14.7% year-over-year change
Average people per household
2
Non-family households
306
Family households
687
Value Percent YoY change
Non-family households 306 30.8% -29.2%
Family households 687 69.2% -6.2%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Columbia

The housing landscape of Columbia

Columbia's housing consists of 1,276 units, with 57.4% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 6.7% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 28.1% of the housing landscape.

Housing units
1,276
-4.6% year-over-year change
Housing types
Value Percent
1 unit, detached 732 57.4%
1 unit, attached 85 6.7%
2 units 8 0.6%
3 or 4 units 49 3.8%
5 to 9 units 30 2.4%
10 to 19 units 14 1.1%
Mobile home 358 28.1%
Homes built since 2020
0
% year-over-year change

The age of buildings in Columbia

In Columbia, the median construction year is 1979. About 0.9% of homes were built before the 1940s, with another 4.1% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 11 0.9% 0.0%
Built between 1940 and 1949 52 4.1% 8.3%
Built between 1950 and 1959 25 2% -69.5%
Built between 1960 and 1969 303 23.8% 30.0%
Built between 1970 and 1979 281 22% 8.9%
Built between 1980 and 1989 350 27.4% -12.5%
Built between 1990 and 1999 109 8.5% 21.1%
Built between 2000 and 2009 120 9.4% -33.7%
Built between 2010 and 2019 25 2% -28.6%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Columbia occupancy rates

Out of the 993 occupied housing units in Columbia, 70.3% are owner-occupied, while 29.7% are lived in by tenants. Meanwhile, 22.2% of all homes on the local market sit vacant.

Occupied housing units
993
-14.7% year-over-year change
Occupancy breakdown
Renter occupied
295
Owner occupied
698
Value Percent YoY
change
Renter occupied 295 29.7% -11.1%
Owner occupied 698 70.3% -16.1%
Unoccupied housing units
22.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Columbia housing costs

Housing costs in Columbia come to a median of $1,139 per month, while tenants specifically pay a median gross rent of $1,217.

Median housing costs per month
$1,139/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Columbia
$1,217/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Columbia

Columbia education at a glance

About 21.3% of the population in Columbia went to high school, while 39.8% pursued college studies. Another 14.2% earned an associate degree and 15.7% hold a bachelor’s. Meanwhile, 6.1% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 52 2.9% 10.6%
High school diploma 388 21.3% -27.8%
College diploma 725 39.8% -12.8%
Associate degree 259 14.2% -19.6%
Bachelor's degree 286 15.7% 15.8%
Graduate degree 111 6.1% -17.2%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Columbia

How much people earn in Columbia

The average annual household income in Columbia was $68,995 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -5.9% change from the previous year. At the same time, the median income stood at $58,520, reflecting a +1.5% shift over the same period.

Average household income in Columbia
$68,995/year
-5.9% year-over-year change
Median household income in Columbia
$58,520/year
1.5% year-over-year change

Columbia income by age

In Columbia, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $58,466. Overall, 84.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $58,466 2.6%
Over 65 $54,276 9.9%
Above poverty level
1,776
Below poverty level
327
Value Percent YoY
change
Above poverty level 1,776 84.4% -17.2%
Below poverty level 327 15.6% -11.1%

Employment in Columbia

Workforce and job types in Columbia

The job market in Columbia is powered by 948 working residents, spread across a range of industries and roles. 79.1% of the working population are employed in professional or administrative positions, while 20.9% are in hands-on or service-based jobs. Also, 24.7% run their own businesses, 54.2% are employed by private companies, and 14.9% work in the public sector.

Workforce demographics

Working population
948
-14.6% year-over-year change
White collar
750
Blue collar
198
Value Percent YoY change
White collar 750 79.1% -17.7%
Blue collar 198 20.9% -0.5%
Employer type
Self employees
24.7%
Private companies
54.2%
Governmental workers
14.9%
Not for profit companies
6.2%
Value Percent YoY change
Self employees 234 24.7% -20.1%
Private companies 514 54.2% -12.7%
Governmental workers 141 14.9% -11.3%
Not for profit companies 59 6.2% -14.5%
Unemployment rate
10.0%
14.1% year-over-year change

Available workforce

The unemployment rate in Columbia stands at 10%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Columbia

How people get around in Columbia

Commuting methods vary: 68.9% of residents travel by personal vehicle and 10.7% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 638 68.9% -13.0%
Walk 99 10.7% 8.8%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Columbia by zipcode?

Zipcode Population Number of households Median income Average income
95310 1,356 618 $54,697 $66,785

Explore more communities

FAQs about Columbia demographics 

What is the total population of Columbia?

Columbia has a total population of 2,235 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -15.5% compared to a year ago.

What is the gender ratio in Columbia?

The gender ratio in Columbia is as follows:
  • 49.7% males (1,111 residents)
  • 50.3% females (1,124 residents)

What is the median age in Columbia?

The median age in Columbia is 49.8.

What is the age distribution of the population in Columbia?

The age distribution in Columbia is as follows:
  • Under 15: 14.4% (321 residents)
  • Ages 15-24: 11.9% (266 residents)
  • Ages 25-44: 20% (448 residents)
  • Ages 45-64: 21% (470 residents)
  • Over 65: 32.7% (730 residents)

What is the racial and ethnic makeup of Columbia?

The racial and ethnic makeup of Columbia is as follows:
  • White: 81% (1,810 residents)
  • Black or African American: 1.1% (25 residents)
  • American Indian and Alaska Native: 0.2% (4 residents)
  • Asian: 3.1% (70 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 8.9% (199 residents)
  • Other: 5.7% (127 residents)

What percentage of the population in Columbia are U.S.-born citizens?

U.S.-born citizens represent 94.1% of the population in Columbia.

How many housing units are there in Columbia?

There are 1,276 housing units in Columbia, reflecting a -4.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Columbia and what is the average household size?

Columbia has a total of 993 households, with an average of 2 people in each.

What is the median household income in Columbia?

Columbia has a median household income of $58,520, representing a +1.5% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Columbia?

The employment rate is 90% in Columbia, with a workforce of 948 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 79.1% (750 residents)
  • Blue-collar workers: 20.9% (198 residents)

Places of employment:
  • Self-employed: 24.7% (234 residents)
  • Private companies: 54.2% (514 residents)
  • Governmental workers: 14.9% (141 residents)
  • Not-for-profit companies: 6.2% (59 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025