
California · Census place 78470
Thermalito, CA population, income and ZIP codes
Quick answer
The population of the city of Thermalito, California (Thermalito, CA — Census place “Thermalito CDP”) is 6,645 residents, ranking #592 of 1618 places in California. Median household income is $53,814, the median home is worth $257,400 and median gross rent runs $1,104 a month. Looking for the Thermalito California ZIP code list? 1 ZIP codes serve Thermalito, CA: 95965.
- Population
- 6,645Thermalito CDP residents
- Median household income
- $53,814Past 12 months, inflation adjusted
- Median home value
- $257,400Owner-occupied units
- Median gross rent
- $1,104Rent plus utilities, monthly
- Median age
- 37.5 yrsAll residents
- Homeownership rate
- 70%Owner-occupied households
Thermalito ZIP codes (California)
Census ZCTAs whose delivery area overlaps Thermalito.
The Thermalito CA ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.
What the numbers mean in Thermalito CDP
Housing cost measured against local earnings.
A household earning the Thermalito CDP median would spend about 24.6% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 4.8× the median household income; nationally that ratio sits near 4.5×. Poverty affects 17.2% of residents and 70% of households own their home.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Thermalito CDP, CA in context
How this area compares with national benchmarks.
Thermalito CDP is a mid-size town in California, with 6,645 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #592 of 1,618 ranked by population — larger than 63% of them. The median age here is 37.5 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in Thermalito CDP earn a median of $53,814 a year, 31.5% below the national figure of $78,538 and 41% below the $91,111 median for the 1,050 California cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 17.2% of residents here, above the 12.4% national rate.
The typical owner-occupied home in Thermalito CDP is valued at $257,400, 15.2% below the national figure and 56% below the $589,600 peer median, while median gross rent runs $1,104 a month, 21.5% below the national figure, or roughly $13,248 across a full year. A household on the local median income would put about 24.6% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 4.8×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 70% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.
Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
Compare with nearby places
Places of similar size in California.
- Rancho Calaveras CDP 6,619
- Nuevo CDP 6,737
- Jamul CDP 6,617
- Lake Mathews CDP 6,749
- Calipatria city 6,549
- Joshua Tree CDP 6,767
- Desert Palms CDP 6,522
- Vandenberg Village CDP 6,793
Keep going
More California coverage.
Frequently asked questions
Common questions about this area.
- What is the population of Thermalito CDP?
- Thermalito CDP has 6,645 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #592 of 1,618 in California.
- What is the median household income in Thermalito CDP?
- Median household income in Thermalito CDP is $53,814 a year, 31.5% below the national figure of $78,538.
- How much does it cost to rent or buy in Thermalito CDP?
- Median gross rent is $1,104 a month and the median home value is $257,400, so rent absorbs about 24.6% of median household income.
- Is Thermalito CDP affordable compared with the rest of the US?
- Homes cost about 4.8× the local median income here versus roughly 3.9× nationally, so Thermalito CDP is less affordable to buy in than the typical US market, and rent takes 24.6% of median income against the 30% cost-burden line.
- How current is this Thermalito CDP data?
- All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.