Franklin, ID population, income and ZIP codes

Franklin city is a very small community in Idaho, with 880 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #109 of 236 ranked by population — larger than 54% of them. The median age here is 25.5 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 Franklin city earn a median of $64,375 a year, 18% below the national figure of $78,538 and within a couple of points of the $63,864 median for the 100 Idaho 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 6.8% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Franklin city is valued at $318,200, 4.9% above the national figure and 17% above the $271,500 peer median, while median gross rent runs $1,205 a month, 14.3% below the national figure, or roughly $14,460 across a full year. A household on the local median income would put about 22.5% 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 4.9×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 74% 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.

A median age of 25.5 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 880 residents, a handful of survey responses moves every median on this page. Compare Franklin city 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.