What is the population of Caldwell city?

Caldwell city has 63,465 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #5 of 236 in Idaho.

What is the median household income in Caldwell city?

Median household income in Caldwell city is $66,663 a year, 15.1% below the national figure of $78,538.

How much does it cost to rent or buy in Caldwell city?

Median gross rent is $1,135 a month and the median home value is $322,100, so rent absorbs about 20.4% of median household income.

Is Caldwell city affordable compared with the rest of the US?

Homes cost about 4.8× the local median income here versus roughly 3.9× nationally, so Caldwell city is less affordable to buy in than the typical US market, and rent takes 20.4% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

Idaho · Census place 12250

Caldwell, ID population, income and ZIP codes

Quick answer

The population of the city of Caldwell, Idaho (Caldwell, ID — Census place “Caldwell city”) is 63,465 residents, ranking #5 of 236 places in Idaho. Median household income is $66,663, the median home is worth $322,100 and median gross rent runs $1,135 a month. Looking for the Caldwell Idaho ZIP code list? 1 ZIP codes serve Caldwell, ID: 83605.

Population: 63,465Caldwell city residents
Median household income: $66,663Past 12 months, inflation adjusted
Median home value: $322,100Owner-occupied units
Median gross rent: $1,135Rent plus utilities, monthly
Median age: 30.8 yrsAll residents
Homeownership rate: 70.7%Owner-occupied households

Caldwell ZIP codes (Idaho)

Census ZCTAs whose delivery area overlaps Caldwell.

The Caldwell ID ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

83605

What the numbers mean in Caldwell city

Housing cost measured against local earnings.

A household earning the Caldwell city median would spend about 20.4% 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 13.3% of residents and 70.7% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Caldwell city, ID in context

How this area compares with national benchmarks.

Caldwell city is a small city in Idaho, with 63,465 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #5 of 236 ranked by population — larger than 98% of them. The median age here is 30.8 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. 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 Caldwell city earn a median of $66,663 a year, 15.1% below the national figure of $78,538 and 4% above the $63,864 median for the 100 Idaho cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 13.3% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Caldwell city is valued at $322,100, 6.2% above the national figure and 19% above the $271,500 peer median, while median gross rent runs $1,135 a month, 19.3% below the national figure, or roughly $13,620 across a full year. A household on the local median income would put about 20.4% 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. 70.7% 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.

All values below were released by the Census for this exact geography, with no gap-filling on our side. 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 Idaho.

More Idaho coverage.

Frequently asked questions

Common questions about this area.

What is the population of Caldwell city?: Caldwell city has 63,465 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #5 of 236 in Idaho.
What is the median household income in Caldwell city?: Median household income in Caldwell city is $66,663 a year, 15.1% below the national figure of $78,538.
How much does it cost to rent or buy in Caldwell city?: Median gross rent is $1,135 a month and the median home value is $322,100, so rent absorbs about 20.4% of median household income.
Is Caldwell city affordable compared with the rest of the US?: Homes cost about 4.8× the local median income here versus roughly 3.9× nationally, so Caldwell city is less affordable to buy in than the typical US market, and rent takes 20.4% of median income against the 30% cost-burden line.
How current is this Caldwell city 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.