Knox County ZIP Codes

List of ZIP Codes in Knox County

The following table lists ZIP Codes associated with Knox County, Ohio, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.

S.N.	Zip Code	Latitude	Longitude	City	Population	Density
1	43005	40.28241	-82.26728	Bladensburg	308	61.0
2	43011	40.30946	-82.68456	Centerburg	6,978	33.7
3	43014	40.46646	-82.25242	Danville	4,185	23.1
4	43019	40.49527	-82.57831	Fredericktown	9,517	33.4
5	43022	40.33765	-82.34135	Gambier	3,621	33.2
6	43028	40.40335	-82.29783	Howard	8,063	61.5
7	43037	40.28062	-82.31654	Martinsburg	265	31.6
8	43050	40.37188	-82.49536	Mount Vernon	30,360	76.1

About Knox County ZIP Codes

Knox County in Ohio (OH) is served by approximately 8 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 63,297 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Knox County are located in cities such as Mount Vernon, Fredericktown, Howard, Centerburg, Danville. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Knox County, Ohio follow the America/New_York time zone.

Knox County ZIP Codes

List of ZIP Codes in Knox County

About Knox County ZIP Codes

Ohio Counties ZIP Codes

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