Rockcastle

Source:

Kentucky

Rockcastle is a sparsely populated county in Kentucky with 4 ZIP codes, 15,269 people, and one of the lowest household incomes among US counties among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

National county placement

According to ACS 5-Year Estimates, Rockcastle, KY sits among US counties with one of the lowest household incomes among US counties, on a sparsely populated county population base, across a handful of delivery areas.

6th pct
household income vs 3,210 US counties
15,269
combined ZIP population
4
USPS ZIP codes covered
$43,598
avg ZIP median income

Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.

Rockcastle lands in the national county income distribution as one of the lowest household incomes among US counties on sparsely populated county footing (FIPS 21203, 4 ZIPs, combined population 15,269). On this short ZIP list the county page is mainly the FIPS bridge - household ACS fields live on the primary ZIP.

Lower-income footing on a short ZIP list (4 codes, population 15,269). Skip multi-ZIP synthesis; open the primary code first, then return here only for the FIPS-keyed rent and crime overlays.

Population sits in the five-to-twenty-five thousand band with few ZIPs - still ZIP-first for household fields, but the county seat ZIP (usually the densest row) is worth a second glance before the FIPS overlays.

Within Kentucky, Morgan is the closest lower-income county and Bell the closest higher-income county by average ZIP household income. Their 4 and 7 ZIP footprints are the immediate statewide comparison set for Rockcastle. Use those locations as statewide context before treating the county average as a local-market answer.

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4

Total ZIPs

15,269

Total Population

ZIP Codes in Rockcastle

Side-by-side: Compare 40456 vs 40409 →

ZIP Code City Population Density
40456 Mount Vernon 9,300 21
40409 Brodhead 3,843 34
40460 Orlando 1,129 12
40445 Livingston 997 8

Frequently Asked Questions

What is the population of Rockcastle?

Rockcastle has a total population of 15,269 across 4 ZIP codes, based on U.S. Census Bureau ACS 2023 data.

What ZIP codes are in Rockcastle?

Rockcastle includes 4 ZIP codes: 40456, 40409, 40460, 40445.

Rockcastle's figures come from Census ACS 5-Year Estimates (2023), mapped to ZIP codes via the HUD USPS Crosswalk. PlainZIP is not affiliated with the U.S. Census Bureau or any government agency. See our methodology for details.

Related

Compare any two ZIPs side by side

Read our methodology : how this data is sourced, computed, and verified.