ZIP code 40020
Where is ZIP code 40020?
Fairfield, Kentucky
Nelson County · PO Box only ZIP code
ZIP code 40020 belongs to Fairfield, Kentucky in Nelson County. 40020 is a PO Box only ZIP code: it is used for post office boxes at the Fairfield post office, not for street addresses. It is in the Eastern Time zone and uses area code 502. About 199 people live in the 40020 area, where the median household income is $90,712. The closest ZIP codes are 40013 (Coxs Creek, 4.6 mi west), 40008 (Bloomfield, 5.7 mi east) and 40048 (Nazareth, 7.5 mi southwest).
| ZIP code | 40020 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Fairfield |
| State | Kentucky (KY) |
| County | Nelson County |
| Time zone | Eastern Time · now |
| Area code | 502 |
| Coordinates | 37.934, -85.3862 map |
| 3-digit prefix | 400 |
Population and income in 40020
| Population | 199 · lower than 90% of Kentucky ZIP codes |
|---|---|
| People per square mile | 419 · higher than 87% of Kentucky ZIP codes |
| Median age | 59.9 years · higher than 95% of Kentucky ZIP codes |
| Men / women | 32% / 68% |
| Median household income | $90,712 · higher than 91% of Kentucky ZIP codes |
| Income per person | $31,321 |
| Below the poverty line | 2.0% |
| Bachelor’s degree or higher | 13% of adults 25+ |
| Housing units | 119 |
| Households | 119 (1.67 people on average) |
| Owners / renters | 98% / 2.5% |
| Land area | 0.48 sq mi |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 40020. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 40020
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 40013 | Coxs Creek, KY | 4.6 mi W | Standard |
| 40008 | Bloomfield, KY | 5.7 mi E | Standard |
| 40048 | Nazareth, KY | 7.5 mi SW | PO Box only |
| 40071 | Taylorsville, KY | 7.8 mi N | Standard |
| 40004 | Bardstown, KY | 9.6 mi SW | Standard |
| 40012 | Chaplin, KY | 10.3 mi E | Standard |
| 40047 | Mount Washington, KY | 12.1 mi NW | Standard |
| 40046 | Mount Eden, KY | 14 mi NE | Standard |
| 40110 | Clermont, KY | 14.7 mi W | PO Box only |
| 40061 | Saint Catharine, KY | 15 mi SE | PO Box only |
| 40078 | Willisburg, KY | 15.2 mi SE | Standard |
| 40022 | Finchville, KY | 15.5 mi N | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 40020 or measure the distance to another ZIP code.
How to address mail to 40020
PO BOX 123
FAIRFIELD KY 40020
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (40020-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 40020?
- 40020 is a Fairfield, Kentucky ZIP code.
- What county is 40020 in?
- ZIP code 40020 is in Nelson County, Kentucky.
- What time zone is ZIP code 40020 in?
- 40020 is in the Eastern Time zone (America/New_York).
- What area code is 40020?
- Phone numbers in ZIP code 40020 use area code 502.
- What is the population of ZIP code 40020?
- About 199 people live in ZIP code 40020, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 40020?
- The median household income in 40020 is $90,712 a year, higher than 91% of Kentucky ZIP codes.
- Can I use 40020 for a street address?
- No. 40020 is only for PO Boxes. Street addresses in Fairfield use another ZIP code.
- What ZIP codes are near 40020?
- The nearest ZIP codes to 40020 are 40013 (Coxs Creek, 4.6 miles), 40008 (Bloomfield, 5.7 miles), 40048 (Nazareth, 7.5 miles) and 40071 (Taylorsville, 7.8 miles).