Washington County, KY ZIP Codes
6 ZIP codes cover all or part of Washington County, Kentucky: 40330, 40069, 40078, 40468, 40040 and 40061. The Census Bureau counts 12,140 residents in the county, with a median household income of $61,616 and a median home value of $179,200. Median household income ranges from $54,435 in 40078 to $70,788 in 40069. Its largest communities include Springfield, Willisburg and Mackville.
Washington County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 12,140 |
| Households | 4,852 |
| Median household income | $61,616 |
| Median home value | $179,200 |
| Median age | 42.3 |
| Median rent | $744 |
All 6 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 34,957 |
| Households (sum of ZIP codes) | 14,010 |
| Median household income, range across ZIP codes | $54,435 (40078) to $70,788 (40069) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $65,050 |
| Homeowners | 76.6% |
| Households with kids under 18 | 29.0% |
| Moved in the past year | 10.9% |
| Carrier routes in EDDM2GO's route library | 28 routes, 15,354 homes (5 of 6 ZIP codes) |
Top facts
- Highest median household income in Washington County: 40069 ($70,788)
- Most residents: 40330 (21,250 people)
- Highest homeownership: 40078 (82.0% own their home)
- Most households with kids: 40468 (51.4% of households)
- Most new movers: 40468 (14.9% moved in last year)
- Youngest median age: 40078 (32.0 years)
- Highest median home value: 40330 ($199,500)
Every ZIP code in Washington County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 40330 | Harrodsburg | 21,250 | 8,532 | $63,992 | $199,500 | 75.8% | 26.5% | 11.0% | 15 | 9,834 | 12% of its land |
| 40069 | Springfield | 8,015 | 3,357 | $70,788 | $194,200 | 75.1% | 29.8% | 8.9% | 8 | 4,041 | 98% of its land |
| 40078 | Willisburg | 2,661 | 884 | $54,435 | $183,400 | 82.0% | 28.8% | 6.8% | 2 | 1,086 | 100% of its land |
| 40468 | Perryville | 2,084 | 886 | $64,081 | $172,200 | 80.4% | 51.4% | 14.9% | 2 | 812 | 14% of its land |
| 40040 | Mackville | 779 | 351 | — | $158,600 | 87.7% | 24.8% | 19.9% | 1 | 268 | 100% of its land |
| 40061 | Saint Catharine | 168 | 0 | — | — | — | — | 66.1% | — | — | 100% of its land |
A ZIP code is listed for Washington County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Springfield — 2,899 residents · 2 ZIP codes
- Willisburg — 334 residents · 1 ZIP code
- Mackville — 204 residents · 1 ZIP code
Price a mailing to Washington County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Washington County, KY?
- 40330, 40069, 40078, 40468, 40040 and 40061. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Washington County?
- 12,140 residents in 4,852 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Washington County?
- $61,616 for the county as a whole. Its ZIP codes range from $54,435 (40078) to $70,788 (40069).
- Which Washington County ZIP code has the highest median household income?
- 40069, at $70,788, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Washington County?
- For the 5 of 6 ZIP codes in EDDM2GO's stored route library: 28 carrier routes reaching 15,354 residential and 685 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.