What is the population of Mills County?

Mills County has 14,563 residents on Census ACS 2019-2023 ACS 5-year estimates.

What is the median household income in Mills County?

Median household income in Mills County is $87,810 a year, 11.8% above the national figure of $78,538.

How much does it cost to rent or buy in Mills County?

Median gross rent is $888 a month and the median home value is $228,700, so rent absorbs about 12.1% of median household income.

Is Mills County affordable compared with the rest of the US?

Homes cost about 2.6× the local median income here versus roughly 3.9× nationally, so Mills County is more affordable to buy in than the typical US market, and rent takes 12.1% of median income against the 30% cost-burden line.

Historic small-town main street building, illustrating the US counties directory

Iowa · FIPS 19129

Mills ZIP codes — Mills County, Iowa

Quick answer

Mills County is home to 14,563 residents with a median household income of $87,810 and a median home value of $228,700. 84.2% of households own their home and 6.9% of residents live below the poverty line. Looking for a Mills ZIP code? 7 ZIP code areas fall inside Mills County, Iowa, listed in full below.

Population: 14,563Mills County residents
Median household income: $87,810Past 12 months, inflation adjusted
Median home value: $228,700Owner-occupied units
Median gross rent: $888Rent plus utilities, monthly
Median age: 42.6 yrsAll residents
Homeownership rate: 84.2%Owner-occupied households

Mills County, IA in context

How this area compares with national benchmarks.

Mills County is a mid-size town in Iowa, with 14,563 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 42.6 years against 39.1 nationally, a slightly older 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 Mills County earn a median of $87,810 a year, 11.8% above the national figure of $78,538. 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 6.9% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Mills County is valued at $228,700, 24.6% below the national figure, while median gross rent runs $888 a month, 36.8% below the national figure, or roughly $10,656 across a full year. A household on the local median income would put about 12.1% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.6×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 84.2% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. 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.

ZIP codes in Mills County

ZIP code tabulation areas whose land area falls mostly in Mills County.

How to read this page

What these estimates cover.

Figures are five-year rolling averages from the American Community Survey, not single-year counts, so they describe conditions across 2019-2023 ACS 5-year rather than a single date. Median home value covers owner-occupied units as valued by their owners, and median gross rent includes utilities the renter pays. Small counties carry wide margins of error; treat single-dollar differences between neighbouring counties as noise.

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

Cities and towns in Iowa

Largest Census places in Iowa by population.

Nearby counties

Other counties in Iowa.

Frequently asked questions

Common questions about this area.

What is the population of Mills County?: Mills County has 14,563 residents on Census ACS 2019-2023 ACS 5-year estimates.
What is the median household income in Mills County?: Median household income in Mills County is $87,810 a year, 11.8% above the national figure of $78,538.
How much does it cost to rent or buy in Mills County?: Median gross rent is $888 a month and the median home value is $228,700, so rent absorbs about 12.1% of median household income.
Is Mills County affordable compared with the rest of the US?: Homes cost about 2.6× the local median income here versus roughly 3.9× nationally, so Mills County is more affordable to buy in than the typical US market, and rent takes 12.1% of median income against the 30% cost-burden line.
How current is this Mills County 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.