42437 ZIP Code, Morganfield, KY

42437 is a ZIP code in Morganfield, Kentucky in Union County. It covers 169 square miles of land. The closest ZIP codes are 42459, 42462 and 42461. 7,064 people live here in 2,614 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (67% own). Median household income is $65,256, close to the Kentucky median of $63,726.

Quick facts

Key figures

MeasureValue
Residents7,064
Households2,614
Median household income$65,256
Income per person$30,720
Median age39.6
Homeowners66.7%
Median home value$109,800
Median rent$849
Bachelor's degree or higher13.5%
Average commute (minutes)21.5
Households with kids under 1828.2%
Moved in the past year18.5%
Below the poverty line25.2%
Broadband internet90.5%
Speak a non-English language at home2.3%

Household income

% of householdsValue
<$10K8.3%
$10–15K6.0%
$15–25K7.9%
$25–35K5.3%
$35–50K11.8%
$50–75K19.6%
$75–100K15.7%
$100–150K17.4%
$150–200K5.3%
$200K+2.7%

Age

% of all residentsValue
<1011.1%
10–1912.1%
20–248.6%
25–3412.7%
35–4410.0%
45–5411.3%
55–6414.5%
65–7412.8%
75+6.9%

Tenure

% of housing unitsValue
Owned, with mortgage24.3%
Owned outright34.6%
Rented28.7%
Vacant12.3%

Type of building

% of housing unitsValue
Detached house73.9%
Townhome0.9%
2–4 units5.5%
5–19 units4.9%
20+ units0.0%
Mobile / other14.6%

Businesses in 42437

165 business establishments with 2,346 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

42437 has 8 USPS carrier routes with 2,882 residential and 229 business mailboxes. Open the EDDM route map.

Carrier routes in 42437

42437 has 8 USPS carrier routes (3 city (C), 5 rural (R)) with 2,882 residential and 229 business mailboxes. Routes range from 105 homes (C001) to 600 homes (R004); the median route has 376 homes. The Census counted 2,614 households in 42437 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–4995
500–7491
750–9990
1,000–1,4990
1,500+0

Best routes in 42437 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C002 — USPS business mailboxes 55, 453 homes
  2. Route C003 — USPS business mailboxes 54, 435 homes
  3. Route R004 — USPS business mailboxes 49, 600 homes
  4. Route R005 — USPS business mailboxes 31, 439 homes
  5. Route R003 — USPS business mailboxes 17, 316 homes

Select these 5 routes on the route map

Every carrier route in 42437

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City1057$86,966———
C002City45355$44,590———
C003City43554$86,966———
R002Rural2453$51,158———
R003Rural31617$97,128———
R004Rural60049$86,966———
R005Rural43931$86,966———
R006Rural28913$51,351———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 42437 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

Areas that include 42437

Mail every home in 42437

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) 42437, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 42437 in?
42437 is a Morganfield, KY mailing address. By land area, 2% lies inside Morganfield and 2% lies inside Breckinridge Center; the rest is outside any Census-defined city or community.
What county is 42437 in?
42437 is in Union County.
What is the population of 42437?
About 7,064 people (±493), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 7,422.
What is the median household income in 42437?
$65,256 (±$3,997), 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 42437?
8 USPS carrier routes with 2,882 residential and 229 business mailboxes (3,110 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 42437?
The closest, measured center to center: 42459 (8 mi, Sturgis), 42462 (9.1 mi, Waverly), 42461 (10.3 mi, Uniontown), 42404 (12.3 mi, Clay), 42463 (12.5 mi, Wheatcroft) and 42406 (13 mi, Corydon).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.