Rockcastle County, KY ZIP codes
Rockcastle County, KY has 6 ZIP codes, in 6 towns: 40456, 40409, 40460, 40445, 40473 and 40492. 1 more crosses into it from a neighbouring county: 40419.
The county seat is Mount Vernon.
- ZIP codes
- 6
- Partly in it
- 1 more
- Towns
- 6
- County seat
- Mount Vernon
- County FIPS
21203- State
- Kentucky
- Population
- 16,163
- Median household income
- $48,862
- Land area
- 317 sq mi
- Metro area
- Richmond-Berea
Rockcastle County ZIP codes by town
- Mount Vernon (county seat)
- 40456
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
ZIP codes partly in Rockcastle County
This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Rockcastle County.
- 40419 Crab Orchard · mostly in Lincoln County
Map of Rockcastle County ZIP codes
The ZIP codes of Rockcastle County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Rockcastle County in numbers
About 16,163 people live in Rockcastle County, in 6,534 households, the 69th most populous of Kentucky's 120 counties. The median household income is $48,862 a year, 23% below the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $123,600 (40% below the Kentucky median), and median gross rent is $676 a month. The median age is 42.8; 13.7% of adults 25 and over hold a bachelor's degree or higher (27.6% across Kentucky); the average commute takes 26 minutes.
| Population | 16,163 |
|---|---|
| Households | 6,534 |
| Median age | 42.8 |
| Median household income | $48,862 |
| Median home value | $123,600 |
| Median gross rent | $676 |
| Bachelor's degree or higher | 13.7% |
| Mean commute | 26.4 min |
| Population density | 51 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Rockcastle County
| Town | ZIP codes | Population |
|---|---|---|
| Mount Vernon | 1 | 2,398 |
| Brodhead | 1 | 1,423 |
| Orlando | 1 | 1,358 |
| Livingston | 1 | 187 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Rockcastle County.
- Madison County (6)
- Pulaski County (10)
- Lincoln County (5)
- Garrard County (3)
- Estill County (2)
- Jackson County (6)
- Owsley County (5)
Not sure you are in Rockcastle County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Rockcastle County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
40409 | Brodhead , KY | Standard | 3,445 | $52,619 | $123,600 |
40445 | Livingston , KY | Standard | 755 | $39,449 | $82,800 |
40456 | Mount Vernon , KY | Standard | 8,370 | $46,907 | $156,300 |
40460 | Orlando , KY | Standard | 1,358 | $35,417 | $69,000 |
40473 | Renfro Valley , KY | No street area | — | — | — |
40492 | Wildie , KY | No street area | — | — | — |
Cite this page
zipcodes.pro. “Rockcastle County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ky/county/rockcastle
Underlying data is public domain or openly licensed — sources, vintages and licences.