County ZIP codes · Kentucky · FIPS 21015

Boone County, KY ZIP Codes

Boone County, Kentucky has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 9 residential and 2 for PO boxes or a single organization. 7 of the residential ones lie mainly in Boone County and 2 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $68,605 in 41018 (Erlanger) to $137,398 in 41048 (Hebron) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Boone County?

The residential ZIP codes of Boone County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

41018 · $69k 41048 · $137k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $79,712 and $120,833.

They carry 9 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 9 residential ZIP codes in Boone County

7 ZIP codes lie mainly in Boone County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Boone County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
41042	Florence	57,634	2,606	$80k	$223k	95%
41005	Burlington	25,718	491	$112k	$272k	100%
41091	Union	25,244	449	$136k	$400k	100%
41048	Hebron	16,211	484	$137k	$329k	100%
41094	Walton	14,486	344	$97k	$294k	63%
41092	Verona	3,135	82	$86k	$255k	65%
41080	Petersburg	1,819	68	$121k	$216k	100%

Partly in Boone County

Residential ZIP codes mainly in another county that reach at least 1% into Boone County, by their share here
						In this county
41018	Erlanger	28,940	2,502	$69k	$192k	23%
41030	Crittenden	6,162	189	$84k	$248k	8%

Download the 11 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

5 ZIP codes of Boone County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Boone County and in the neighboring counties
ZIP	In Boone	Elsewhere
41042	95%	Kenton County 5%
41018	23%	Kenton County 77%
41094	63%	Kenton County 37%
41030	8%	Grant County 62%; Kenton County 29%
41092	65%	Gallatin County 33%; Grant County 2%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Boone County without a residential area (GeoNames postal codes)
ZIP	Postal name
41021	Hebron
41022	Florence

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Boone County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Boone County starts with 410.

Three-digit prefixes of Boone County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Boone County's
Prefix	Sectional center	Here	All codes
410	Cincinnati, OH (SCF 450)	11	68

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.