Jefferson ZIP codes — Jefferson County, Kentucky

Jefferson County is a major city in Kentucky, with 777,392 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 38.4 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this size the Census also publishes one-year estimates; the five-year values used here are steadier and let you compare against smaller neighbours on the same basis.

Households in Jefferson County earn a median of $67,849 a year, 13.6% below the national figure of $78,538. 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 14.5% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Jefferson County is valued at $237,200, 21.8% below the national figure, while median gross rent runs $1,097 a month, 22% below the national figure, or roughly $13,164 across a full year. A household on the local median income would put about 19.4% 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 3.5×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 61.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. 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.