What city is 42330 in?

42330 is a Central City, KY mailing address. By land area, 5% lies inside Central City; the rest is outside any Census-defined city or community.

What is the population of 42330?

About 9,367 people (±580), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,501.

What is the median household income in 42330?

$50,226 (±$4,598), 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 42330?

7 USPS carrier routes with 3,466 residential and 230 business mailboxes (3,697 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 42330?

The closest, measured center to center: 42374 (1.6 mi, South Carrollton), 42332 (4.8 mi, Cleaton), 42367 (5.3 mi, Powderly), 42369 (7.5 mi, Rockport), 42325 (8.1 mi, Bremen) and 42326 (8.2 mi).

42330 ZIP Code, Central City, KY

42330 is a ZIP code in Central City, Kentucky in Muhlenberg County. It covers 104 square miles of land. The closest ZIP codes are 42374, 42332 and 42367. 9,367 people live here in 3,669 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (71%). Median household income is $50,226, below the Kentucky median of $63,726.

Quick facts

Mailing city: Central City, KY
County: Muhlenberg County
Land area: 104 sq mi
Population: 9,367
Median household income: $50,226
Carrier routes: 7 (3,466 homes)

Key figures

Measure	Value
Residents	9,367
Households	3,669
Median household income	$50,226
Income per person	$25,087
Median age	41.1
Homeowners	70.7%
Median home value	$151,200
Median rent	$691
Bachelor's degree or higher	6.6%
Average commute (minutes)	25.4
Households with kids under 18	23.7%
Moved in the past year	17.3%
Below the poverty line	21.0%
Broadband internet	83.5%
Speak a non-English language at home	3.6%

Household income

% of households	Value
<$10K	6.1%
$10–15K	6.3%
$15–25K	14.4%
$25–35K	5.4%
$35–50K	17.4%
$50–75K	22.8%
$75–100K	8.7%
$100–150K	12.6%
$150–200K	3.1%
$200K+	3.4%

Age

% of all residents	Value
<10	10.3%
10–19	9.6%
20–24	7.8%
25–34	14.3%
35–44	13.9%
45–54	15.2%
55–64	10.1%
65–74	10.6%
75+	8.2%

Tenure

% of housing units	Value
Owned, with mortgage	28.1%
Owned outright	35.8%
Rented	26.1%
Vacant	10.1%

Type of building

% of housing units	Value
Detached house	72.8%
Townhome	0.6%
2–4 units	4.3%
5–19 units	5.5%
20+ units	1.1%
Mobile / other	15.7%

Businesses in 42330

207 business establishments with 2,301 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 45
Accommodation and Food Services: 36
Other Services (except Public Administration): 25
Health Care and Social Assistance: 18
Manufacturing: 14
Finance and Insurance: 13
Professional, Scientific, and Technical Services: 12
Construction: 8

EDDM carrier routes

42330 has 7 USPS carrier routes with 3,466 residential and 230 business mailboxes. Open the EDDM route map.

Carrier routes in 42330

42330 has 7 USPS carrier routes (2 city (C), 5 rural (R)) with 3,466 residential and 230 business mailboxes. Routes range from 239 homes (R008) to 661 homes (R005); the median route has 578 homes. The Census counted 3,669 households in 42330 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	2
500–749	4
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 42330 for…

Most businesses

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

Route R005 — USPS business mailboxes 99, 661 homes
Route C002 — USPS business mailboxes 68, 453 homes
Route C001 — USPS business mailboxes 22, 308 homes
Route R004 — USPS business mailboxes 20, 578 homes
Route R002 — USPS business mailboxes 15, 641 homes

Select these 5 routes on the route map

Every carrier route in 42330

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	308	22	$41,537	—	—	—
C002	City	453	68	$111,611	—	—	—
R002	Rural	641	15	$30,838	—	—	—
R003	Rural	586	6	$39,724	—	—	—
R004	Rural	578	20	$111,611	—	—	—
R005	Rural	661	99	$46,684	—	—	—
R008	Rural	239	0	$111,611	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 42330 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

42374 — South Carrollton city, KY (1.6 mi)
42332 — Cleaton CDP, KY (4.8 mi)
42367 — Powderly city, KY (5.3 mi)
42369 — Rockport city, KY (7.5 mi)
42325 — Bremen city, KY (8.1 mi)
42326 (8.2 mi)
42328 — Centertown city, KY (9.1 mi)
42321 — Beechmont CDP, KY (10 mi)

Areas that include 42330

Central City, KY ZIP codes — 1 ZIP code
South Carrollton, KY ZIP codes — 2 ZIP codes
Cleaton, KY ZIP codes — 2 ZIP codes
Muhlenberg County ZIP codes — 15 ZIP codes
Kentucky ZIP code data

Where it ranks

Mail every home in 42330

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) 42330, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 42330 in?: 42330 is a Central City, KY mailing address. By land area, 5% lies inside Central City; the rest is outside any Census-defined city or community.
What county is 42330 in?: 42330 is in Muhlenberg County.
What is the population of 42330?: About 9,367 people (±580), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,501.
What is the median household income in 42330?: $50,226 (±$4,598), 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 42330?: 7 USPS carrier routes with 3,466 residential and 230 business mailboxes (3,697 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 42330?: The closest, measured center to center: 42374 (1.6 mi, South Carrollton), 42332 (4.8 mi, Cleaton), 42367 (5.3 mi, Powderly), 42369 (7.5 mi, Rockport), 42325 (8.1 mi, Bremen) and 42326 (8.2 mi).

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