42101 ZIP Code, Bowling Green, KY

42101 is a ZIP code in Bowling Green, Kentucky — mostly in Warren County (89% of its land), with smaller parts in Edmonson and Butler counties. It covers 281 square miles of land. The closest ZIP codes are 42103, 42274 and 42275. 65,421 people live here in 24,361 households, which puts it among the most populous 1% of Kentucky ZIP codes. With about 233 people per square mile it is lightly settled, and owners and renters are mixed (45% own). Median household income is $48,217, below the Kentucky median of $63,726; the median age is 28.1, younger than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents65,421
Households24,361
Median household income$48,217
Income per person$24,219
Median age28.1
Homeowners44.7%
Median home value$207,200
Median rent$950
Bachelor's degree or higher19.3%
Average commute (minutes)20.4
Households with kids under 1832.5%
Moved in the past year25.0%
Below the poverty line25.2%
Broadband internet91.0%
Speak a non-English language at home18.6%

Household income

% of householdsValue
<$10K8.9%
$10–15K6.0%
$15–25K10.0%
$25–35K10.3%
$35–50K16.7%
$50–75K15.3%
$75–100K13.7%
$100–150K13.5%
$150–200K2.5%
$200K+3.1%

Age

% of all residentsValue
<1014.2%
10–1916.3%
20–2415.6%
25–3414.7%
35–4412.0%
45–549.4%
55–648.1%
65–747.2%
75+2.7%

Tenure

% of housing unitsValue
Owned, with mortgage26.2%
Owned outright14.6%
Rented50.2%
Vacant8.9%

Type of building

% of housing unitsValue
Detached house54.5%
Townhome2.5%
2–4 units14.5%
5–19 units15.3%
20+ units5.7%
Mobile / other7.4%

Businesses in 42101

1,396 business establishments with 34,401 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

42101 has 42 USPS carrier routes with 27,169 residential and 2,011 business mailboxes. Open the EDDM route map.

Carrier routes in 42101

42101 has 42 USPS carrier routes (17 city (C), 25 rural (R)) with 27,169 residential and 2,011 business mailboxes. Routes range from 377 homes (C003) to 1,227 homes (R046); the median route has 572 homes. The Census counted 24,361 households in 42101 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49912
500–74919
750–9997
1,000–1,4994
1,500+0

Best routes in 42101 for…

Most businesses

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

  1. Route C012 — USPS business mailboxes 293, 493 homes
  2. Route C003 — USPS business mailboxes 274, 377 homes
  3. Route C014 — USPS business mailboxes 148, 815 homes
  4. Route C037 — USPS business mailboxes 129, 426 homes
  5. Route C008 — USPS business mailboxes 117, 431 homes

Select these 5 routes on the route map

Every carrier route in 42101

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C002City64844$16,158———
C003City377274$115,268———
C005City1,19211$35,506———
C008City431117$41,255———
C009City60869$16,158———
C010City55650$16,158———
C012City493293$41,255———
C014City815148$34,311———
C017City1,20443$37,700———
C021City8141$65,793———
C022City85570$43,359———
C025City1,15418$54,207———
C027City8383$61,519———
C028City542101$27,464———
C035City58284$77,222———
C036City87038$45,322———
C037City426129$34,311———
R001Rural55811$52,994———
R004Rural65415$90,262———
R005Rural4316$52,089———
R006Rural5004$59,242———
R008Rural46017$67,458———
R010Rural4026$62,494———
R011Rural394108$80,030———
R012Rural5063$58,578———
R013Rural65230$62,069———
R014Rural5523$66,876———
R016Rural48921$26,624———
R017Rural56263$40,518———
R019Rural6540$90,262———
R020Rural977100$57,359———
R028Rural6587$52,977———
R032Rural47280$56,312———
R033Rural5990$81,992———
R034Rural7851$57,359———
R045Rural7300$57,359———
R046Rural1,2276$74,640———
R049Rural5240$90,262———
R050Rural58610$80,030———
R057Rural45114$67,458———
R058Rural4299$66,876———
R059Rural5124$40,518———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 42101 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 42101

Where it ranks

Mail every home in 42101

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) 42101, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 42101 in?
42101 is a Bowling Green, KY mailing address. By land area, 7% lies inside Bowling Green; the rest is outside any Census-defined city or community.
What county is 42101 in?
42101 is mostly in Warren County (89% of its land), with smaller parts in Edmonson and Butler counties.
What is the population of 42101?
About 65,421 people (±2,136), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 64,444.
What is the median household income in 42101?
$48,217 (±$2,537), 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 42101?
42 USPS carrier routes with 27,169 residential and 2,011 business mailboxes (29,182 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 42101?
The closest, measured center to center: 42103 (10 mi, Bowling Green), 42274 (10.6 mi), 42275 (12.1 mi), 42252 (12.2 mi), 42104 (12.5 mi, Bowling Green) and 42159 (12.5 mi, Oakland).

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