40023 ZIP Code, Fisherville, KY
40023 is a ZIP code in Fisherville, Kentucky — mostly in Jefferson County (60% of its land), with smaller parts in Spencer and Shelby counties. It covers 24 square miles of land. The closest ZIP codes are 40022, 40299 and 40067. 6,870 people live here in 2,489 households. With about 283 people per square mile it is lightly settled, and most homes are owner-occupied (96%). Median household income is $144,635, well above the Kentucky median of $63,726.
Quick facts
- Mailing city: Fisherville, KY
- County: Jefferson County
- Land area: 24 sq mi
- Population: 6,870
- Median household income: $144,635
- Carrier routes: 7 (2,716 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 6,870 |
| Households | 2,489 |
| Median household income | $144,635 |
| Income per person | $66,318 |
| Median age | 44.6 |
| Homeowners | 96.0% |
| Median home value | $497,800 |
| Median rent | $1,181 |
| Bachelor's degree or higher | 49.5% |
| Average commute (minutes) | 28.2 |
| Households with kids under 18 | 35.9% |
| Moved in the past year | 7.6% |
| Below the poverty line | 3.0% |
| Broadband internet | 96.8% |
| Speak a non-English language at home | 5.5% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.4% |
| $10–15K | 0.0% |
| $15–25K | 0.2% |
| $25–35K | 3.6% |
| $35–50K | 3.5% |
| $50–75K | 10.5% |
| $75–100K | 5.8% |
| $100–150K | 28.4% |
| $150–200K | 20.5% |
| $200K+ | 26.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 12.6% |
| 10–19 | 13.5% |
| 20–24 | 2.4% |
| 25–34 | 12.2% |
| 35–44 | 10.7% |
| 45–54 | 15.9% |
| 55–64 | 15.0% |
| 65–74 | 16.2% |
| 75+ | 1.5% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 72.6% |
| Owned outright | 20.3% |
| Rented | 3.6% |
| Vacant | 3.5% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 97.4% |
| Townhome | 0.0% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 1.8% |
| Mobile / other | 0.8% |
Businesses in 40023
91 business establishments with 477 employees (ZIP Codes Business Patterns 2023).
- Construction: 29
- Professional, Scientific, and Technical Services: 13
- Other Services (except Public Administration): 8
- Retail Trade: 7
- Wholesale Trade: 5
- Real Estate and Rental and Leasing: 5
- Administrative and Support and Waste Management and Remediation Services: 5
- Transportation and Warehousing: 4
EDDM carrier routes
40023 has 7 USPS carrier routes with 2,716 residential and 26 business mailboxes. Open the EDDM route map.
Carrier routes in 40023
40023 has 7 USPS carrier routes (2 rural (R), 5 highway contract (H)) with 2,716 residential and 26 business mailboxes. Routes range from 226 homes (H079) to 531 homes (H066); the median route has 380 homes. The Census counted 2,489 households in 40023 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 5 |
| 500–749 | 1 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 40023 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route H078 — USPS business mailboxes 10, 351 homes
- Route H066 — USPS business mailboxes 6, 531 homes
- Route H079 — USPS business mailboxes 6, 226 homes
- Route R019 — USPS business mailboxes 4, 467 homes
Select these 4 routes on the route map
Every carrier route in 40023
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| H066 | Highway contract | 531 | 6 | $123,119 | — | — | — |
| H067 | Highway contract | 380 | 0 | $170,425 | — | — | — |
| H068 | Highway contract | 384 | 0 | $170,425 | — | — | — |
| H078 | Highway contract | 351 | 10 | $117,554 | — | — | — |
| H079 | Highway contract | 226 | 6 | $111,560 | — | — | — |
| R019 | Rural | 467 | 4 | $111,560 | — | — | — |
| R020 | Rural | 377 | 0 | $117,554 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 40023 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 40022 (4.5 mi)
- 40299 — Louisville/Jefferson County metro government (balance), KY (5.1 mi)
- 40067 — Simpsonville city, KY (5.4 mi)
- 40245 — Louisville/Jefferson County metro government (balance), KY (7.3 mi)
- 40243 — Middletown city, KY (7.9 mi)
- 40071 — Elk Creek CDP, KY (8.7 mi)
- 40291 — Louisville/Jefferson County metro government (balance), KY (8.9 mi)
- 40223 — Louisville/Jefferson County metro government (balance), KY (9.1 mi)
Areas that include 40023
- Louisville/Jefferson County metro government (balance), KY ZIP codes — 23 ZIP codes
- Elk Creek, KY ZIP codes — 2 ZIP codes
- Fisherville, KY ZIP codes — 1 ZIP code
- Jefferson County ZIP codes — 39 ZIP codes
- Spencer County ZIP codes — 5 ZIP codes
- Kentucky ZIP code data
Where it ranks
- No. 2 of 33: highest median household income in Jefferson County
- No. 2 of 33: highest median home value in Jefferson County
- No. 1 of 33: highest share of owner-occupied homes in Jefferson County
- No. 1 of 33: highest share of households with children in Jefferson County
- No. 3 of 33: highest median age in Jefferson County
- No. 1 of 33: fastest population growth in Jefferson County
Mail every home in 40023
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 40023, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 40023 in?
- 40023 is a Fisherville, KY mailing address. By land area, 60% lies inside Louisville/Jefferson County metro government (balance) and 13% lies inside Elk Creek; the rest is outside any Census-defined city or community.
- What county is 40023 in?
- 40023 is mostly in Jefferson County (60% of its land), with smaller parts in Spencer and Shelby counties.
- What is the population of 40023?
- About 6,870 people (±849), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,956.
- What is the median household income in 40023?
- $144,635 (±$15,506), compared with $63,726 for Kentucky as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 40023?
- 7 USPS carrier routes with 2,716 residential and 26 business mailboxes (2,742 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 40023?
- The closest, measured center to center: 40022 (4.5 mi), 40299 (5.1 mi, Louisville/Jefferson County metro government (balance), KY), 40067 (5.4 mi, Simpsonville), 40245 (7.3 mi, Louisville/Jefferson County metro government (balance), KY), 40243 (7.9 mi, Middletown) and 40071 (8.7 mi, Elk Creek).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.