County ZIP codes · Tennessee · FIPS 47001

Anderson County, TN ZIP Codes

Anderson County, Tennessee has 12 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 10 residential and 2 for PO boxes or a single organization. 7 of the residential ones lie mainly in Anderson County and 3 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $61,250 in 37769 (Rocky Top) to $92,150 in 37931 (Knoxville) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Anderson County?

The residential ZIP codes of Anderson 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?

37769 · $61k 37931 · $92k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $64,915 and $75,774.

They carry 10 postal town names.

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

All 10 residential ZIP codes in Anderson County

7 ZIP codes lie mainly in Anderson County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Anderson County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
37830	Oak Ridge	33,038	390	$72k	$271k	52%
37716	Clinton	27,425	329	$65k	$244k	100%
37769	Rocky Top	5,848	195	$61k	$183k	84%
37705	Andersonville	5,239	117	$79k	$286k	69%
37754	Heiskell	4,211	110	$76k	$196k	68%
37828	Norris	1,371	428	$79k	$315k	100%
37710	Briceville	1,083	13	$28k	$91k	100%

Partly in Anderson County

Residential ZIP codes mainly in another county that reach at least 1% into Anderson County, by their share here
						In this county
37840	Oliver Springs	10,004	124	$76k	$204k	37%
37849	Powell	29,375	739	$84k	$291k	29%
37931	Knoxville	31,842	1,123	$92k	$360k	9%

Download the 12 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?

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

Share of each ZIP code's land in Anderson County and in the neighboring counties
ZIP	In Anderson	Elsewhere
37830	52%	Roane County 48%
37931	9%	Knox County 91%
37849	29%	Knox County 71%
37840	37%	Morgan County 44%; Roane County 19%
37769	84%	Campbell County 16%
37705	69%	Union County 31%
37754	68%	Knox County 27%; Union County 4%

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

PO Box and single-organization ZIP codes

ZIP codes in Anderson County without a residential area (GeoNames postal codes)
ZIP	Postal name
37717	Clinton
37831	Oak Ridge

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Anderson County's ZIP codes use 3 prefixes: 377, 378 and 379.

Three-digit prefixes of Anderson 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 Anderson County's
Prefix	Sectional center	Here	All codes
377	Knoxville, TN (SCF 377)	6	53
378	Knoxville, TN (SCF 377)	5	67
379	Knoxville, TN (SCF 377)	1	31

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