Monroe

Source:

Kentucky

Monroe is a county in Kentucky with 6 ZIP codes and a total population of 13,805. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

Monroe is a county inside Kentucky (FIPS code 21171) that contains 6 USPS ZIP codes covering a combined population of 13,805 according to Census ACS 5-Year Estimates. Counties are the natural bridge between state-level summaries and ZIP-level detail — crime statistics, HUD Fair Market Rents, and childcare pricing are all published at the county level, while household income and housing values are published at the ZIP level. This page reconciles the two views so you can see which ZIPs drive the county totals.

The 6 ZIPs listed below are ordered by population and each links to the full ZIP detail page with Census demographics, housing, income, home-price history, and cross-agency inputs. The most populated ZIP in Monroe is 42167 covering Tompkinsville with 8,145 residents at 15 people per square mile. Population density across ZIPs in this county varies — use the density column to spot urban cores versus rural delivery areas. A single county can contain both a dense downtown ZIP and a large rural ZIP covering several hundred square miles.

Because Monroe uses FIPS code 21171, it joins cleanly to county-level federal datasets: HUD Fair Market Rent tables, FBI Uniform Crime Report data, and the Department of Labor National Database of Childcare Prices all key off the same code. That is how neighborhood scorecards combine ZIP-level Census demographics with county-level safety and affordability metrics. All data on this page comes from U.S. Census Bureau ACS 2023 5-Year Estimates and USPS ZIP Code Tabulation Area files — no estimates, no proprietary sources, no editorial scoring.

6

Total ZIPs

13,805

Total Population

ZIP Codes in Monroe

Side-by-side: Compare 42167 vs 42166 →

ZIP Code City Population Density
42167 Tompkinsville 8,145 15
42166 Summer Shade 2,314 13
42133 Fountain Run 1,370 8
42140 Gamaliel 1,264 12
42157 Mount Hermon 437 10
42151 Hestand 275 4

What are common questions about ZIP codes in this county?

What is the population of Monroe?
Monroe has a total population of 13,805 across 6 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Monroe?
Monroe includes 6 ZIP codes: 42167, 42166, 42133, 42140, 42157, 42151.
What is the median household income in Monroe?
Median household income data for individual ZIP codes in Monroe is available on each ZIP code's detail page. Visit any ZIP code link below to see income, housing, and demographic data.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →

Source: HUD USPS Crosswalk (ZIP-to-county mapping). Verify with HUD →

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.