Fairfield, MT population, income and ZIP codes

Fairfield town is a very small community in Montana, with 746 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #122 of 497 ranked by population — larger than 75% of them. The median age here is 31.3 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. 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 Fairfield town earn a median of $66,544 a year, 15.3% below the national figure of $78,538 and 6% above the $62,992 median for the 94 Montana 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 5.7% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Fairfield town is valued at $203,000, 33.1% below the national figure and 19% below the $250,900 peer median, while median gross rent runs $683 a month, 51.4% below the national figure, or roughly $8,196 across a full year. A household on the local median income would put about 12.3% 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 3.1×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 60.7% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

With 746 residents, a handful of survey responses moves every median on this page. Compare Fairfield town against its county rather than against national figures.

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.