Old Agency, MT population, income and ZIP codes

Old Agency CDP is a very small community in Montana, with 114 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #305 of 497 ranked by population — larger than 38% of them. The median age here is 22.5 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 Old Agency CDP earn a median of $33,750 a year, 57% below the national figure of $78,538 and 46% below the $62,992 median for the 94 Montana cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 59.6% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in Old Agency CDP is valued at not published, while median gross rent runs $275 a month, 80.4% below the national figure, or roughly $3,300 across a full year. A household on the local median income would put about 9.8% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. 36.8% of occupied homes are owner-occupied versus 65% nationally, a renter-majority market, so rent figures matter more here than the home-value line. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

A median age of 22.5 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address. With 114 residents, a handful of survey responses moves every median on this page. Compare Old Agency CDP against its county rather than against national figures.

The Census withheld home value for Old Agency CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.