County ZIP codes · Kentucky · FIPS 21019

Boyd County, KY ZIP Codes

Boyd County, Kentucky has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 4 residential and 2 for PO boxes or a single organization. 4 of the residential ones extend into a neighboring county. Median household income ranges from $53,889 in 41101 to $67,879 in 41102 (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Boyd County?

The residential ZIP codes of Boyd 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?

41101 · $54k 41102 · $68k

They carry 3 postal town names: Ashland, Catlettsburg, Rush.

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

All 4 residential ZIP codes in Boyd County

Residential ZIP codes mainly in Boyd County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
41102	Ashland	20,621	414	$68k	$154k	89%
41101	Ashland	19,189	1,872	$54k	$122k	83%
41129	Catlettsburg	9,010	103	$61k	$152k	79%
41168	Rush	3,673	62	$84k	$151k	65%

Download the 6 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?

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

Share of each ZIP code's land in Boyd County and in the neighboring counties
ZIP	In Boyd	Elsewhere
41102	89%	Greenup County 10%; Carter County 1%
41101	83%	Greenup County 17%
41129	79%	Lawrence County 21%
41168	65%	Carter County 35%

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

PO Box and single-organization ZIP codes

ZIP codes in Boyd County without a residential area (GeoNames postal codes)
ZIP	Postal name
41105	Ashland
41114	Ashland

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Boyd 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 Boyd County starts with 411.

Three-digit prefixes of Boyd 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 Boyd County's
Prefix	Sectional center	Here	All codes
411	Charleston, WV (SCF 250)	6	32

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