Postal Codes

42040 ZIP Code

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ZIP code 42040 covers Farmington, Kentucky, with a population of about 983.

Population
98331 per square mile
Median age
42.43.7 points above the US average
Poverty rate
16.2%3.8 points above the US average
Typical home value
$201,909up 25.9% in five years
Degree or higher
10.2%24.8 points below the US average
Homeownership
90.5%25.5 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
10

Where 42040 is

Farmington, Kentucky — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population983
Median age42.4
Family households58.4%
Born outside the US0.9%
Speaks a language other than English at home1.5%
White (non-Hispanic)87.7%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino2.8%
Veterans15.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Income per person$35,345
Poverty rate16.2%
Households on SNAP or cash assistance4.7%

Household income distribution

Under $10k3.2%
$10–15k10.7%
$15–20k0.0%
$20–25k4.5%
$25–30k1.7%
$30–35k6.0%
$35–40k0.0%
$40–45k15.0%
$45–50k4.0%
$50–60k2.2%
$60–75k7.5%
$75–100k4.7%
$100–125k2.5%
$125–150k31.7%
$150–200k4.5%
$200k or more1.7%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed490
Mean adjusted gross income$60,167
Returns declaring $200,000 or more0%
Returns, under $25k34.7%
Returns, $25k–$50k24.5%
Returns, $50k–$75k12.2%
Returns, $75k–$100k8.2%
Returns, $100k–$200k20.4%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$183,200
Owner-occupied90.5%
Vacant homes17.8%
Median year built1983

What the homes are

Detached house93.9%
2 to 4 units1.6%
Mobile home4.5%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$201,909as of 2026-07
Typical home value, 1 yeardown 3.3%
Typical home value, 5 yearsup 25.9%
Typical home value, 10 yearsup 119.5%
Typical home value since 2000
200920172026$208,811$81,441

$81,493 in 2009 to $201,909 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate0.7%
Bachelor's degree or higher10.2%
High school diploma or higher92.5%
Works from home10.3%
Drives to work alone89.7%
Takes public transport0%
Commutes 45 minutes or more1.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Colorectal screening64.3% same as the national average of 64.3%
Visited a dentist60.1% 1.2 pts below the national average of 61.3%
Mammography use75.1% 0.8 pts below the national average of 75.9%
Sleeps under 7 hours37.2% 0.8 pts above the national average of 36.4%
All natural teeth lost16.7% 3.7 pts above the national average of 13%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments10
People employed35
Annual payroll$812,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 89.2% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 4 census tracts this ZIP code covers
Expected annual loss89.6 out of 100
Community resilience31.5 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Ice storm97.3Very High at its worst in this ZIP code
Drought96.8Relatively Moderate at its worst in this ZIP code
Earthquake95.2Relatively High at its worst in this ZIP code
Strong wind94.3Very High at its worst in this ZIP code
Winter weather92.2Relatively High at its worst in this ZIP code
Landslide87.4Relatively Low at its worst in this ZIP code
Lightning86.7Relatively High at its worst in this ZIP code
Cold wave85Relatively High at its worst in this ZIP code
Hail76.1Relatively Moderate at its worst in this ZIP code
Tornado75.5Relatively High at its worst in this ZIP code
Heat wave72.1Relatively Moderate at its worst in this ZIP code
Wildfire66.2Relatively Low at its worst in this ZIP code
River flooding54.7Relatively Moderate at its worst in this ZIP code
Hurricane48.5Very Low at its worst in this ZIP code
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Compared with Kentucky and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPKentuckyUnited States
Median household income$62,417$78,538
Income per person$35,345$34,960$43,289
Poverty rate16.2%16.1%12.4%
Median home value$183,200$192,300$303,400
Median gross rent$933$1,348
Homeownership90.5%68.3%65%
Bachelor's degree or higher10.2%27%35%
Unemployment rate0.7%4.8%5.2%
Works from home10.3%9.1%13.5%
Born outside the US0.9%4.4%13.9%
Median age42.439.138.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationMURRAY, KY US18.8 km away
Rain in a year58 in
Snow in a year6 in

Average high and low by month

January45.6°F / 27.4°F4.24 in rain, 2.3 in snow
February50.4°F / 30.7°F5.17 in rain, 1.8 in snow
March60.6°F / 38.2°F5.54 in rain, 1 in snow
April71.4°F / 47.5°F5.58 in rain, 0.1 in snow
May78.9°F / 57°F5.76 in rain
June86.3°F / 65.4°F5.31 in rain
July89.3°F / 69°F4.73 in rain
August88.8°F / 67.4°F3.6 in rain
September82.6°F / 60.3°F3.86 in rain
October71.2°F / 48.4°F4.14 in rain, 0.1 in snow
November58.4°F / 37.6°F4.63 in rain, 0.1 in snow
December48.4°F / 30.7°F5.53 in rain, 1.1 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Graves County School District79.7% of this ZIP code's land area
Calloway County School District20.3% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability33more vulnerable than 33% of US census tracts
Socioeconomic status43more vulnerable than 43% of US census tracts
Household characteristics25more vulnerable than 25% of US census tracts
Racial and ethnic minority status12more vulnerable than 12% of US census tracts
Housing type and transport50more vulnerable than 50% of US census tracts
Walkability3.3 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

42079 Sedalia, KY6.3 km away
42063 Lynnville, KY6.3 km away
42054 Kirksey, KY11.7 km away
42049 Hazel, KY17.9 km away
42066 Mayfield, KY18.9 km away
42071 Murray, KY19.3 km away
42088 Wingo, KY19.9 km away
38226 Dukedom, TN20.5 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Graves County79.7% of this ZIP code's land area
Calloway County20.3% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area31.76 sq mi
Water area0.22 sq mi
Population density31 people per sq mi
Latitude, longitude36.6000, -88.5186

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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