What is the population of Boulder city?

Boulder city has 1,326 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #81 of 497 in Montana.

What is the median household income in Boulder city?

Median household income in Boulder city is $61,250 a year, 22% below the national figure of $78,538.

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

Median gross rent is $692 a month and the median home value is $194,800, so rent absorbs about 13.6% of median household income.

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

Homes cost about 3.2× the local median income here versus roughly 3.9× nationally, so Boulder city is more affordable to buy in than the typical US market, and rent takes 13.6% of median income against the 30% cost-burden line.

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

Montana · Census place 08575

Boulder, MT population, income and ZIP codes

Quick answer

The population of the city of Boulder, Montana (Boulder, MT — Census place “Boulder city”) is 1,326 residents, ranking #81 of 497 places in Montana. Median household income is $61,250, the median home is worth $194,800 and median gross rent runs $692 a month. Looking for the Boulder Montana ZIP code list? 1 ZIP codes serve Boulder, MT: 59632.

Population: 1,326Boulder city residents
Median household income: $61,250Past 12 months, inflation adjusted
Median home value: $194,800Owner-occupied units
Median gross rent: $692Rent plus utilities, monthly
Median age: 40.8 yrsAll residents
Homeownership rate: 71.1%Owner-occupied households

Boulder ZIP codes (Montana)

Census ZCTAs whose delivery area overlaps Boulder.

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

59632

What the numbers mean in Boulder city

Housing cost measured against local earnings.

A household earning the Boulder city median would spend about 13.6% 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 3.2× the median household income; nationally that ratio sits near 4.5×. Poverty affects 8.7% of residents and 71.1% of households own their home.

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

Boulder city, MT in context

How this area compares with national benchmarks.

Boulder city is a small town in Montana, with 1,326 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #81 of 497 ranked by population — larger than 83% of them. The median age here is 40.8 years against 39.1 nationally, a slightly older profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Boulder city earn a median of $61,250 a year, 22% below the national figure of $78,538 and 3% below the $62,992 median for the 94 Montana cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 8.7% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Boulder city is valued at $194,800, 35.8% below the national figure and 22% below the $250,900 peer median, while median gross rent runs $692 a month, 50.8% below the national figure, or roughly $8,304 across a full year. A household on the local median income would put about 13.6% 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 3.2×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 71.1% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. 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 Montana.

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Frequently asked questions

Common questions about this area.

What is the population of Boulder city?: Boulder city has 1,326 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #81 of 497 in Montana.
What is the median household income in Boulder city?: Median household income in Boulder city is $61,250 a year, 22% below the national figure of $78,538.
How much does it cost to rent or buy in Boulder city?: Median gross rent is $692 a month and the median home value is $194,800, so rent absorbs about 13.6% of median household income.
Is Boulder city affordable compared with the rest of the US?: Homes cost about 3.2× the local median income here versus roughly 3.9× nationally, so Boulder city is more affordable to buy in than the typical US market, and rent takes 13.6% of median income against the 30% cost-burden line.
How current is this Boulder city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.