ZIP Codes of Jefferson County, TN

Population & People
Population & People
Total Population
56,628
Household Income
Household Income
Median Income
$66,297
Housing
Housing
Total Housing Units
25,261
Business & Economy
Business & Economy
Total Businesses
806
Employment
Employment
Employment Rate
57.89%
Education
Education
Bachelor's Degree+
21.13%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:865
Timezone:Eastern (GMT -05:00)
Local Time:2:13:47 PM
Population:56,628 [See All]
FIPS:47089
CBSA:Morristown, TN
Land Area:303 sq mi
Water Area:30 sq mi
Coordinates:36.0628, -83.5008
Quick Link:
https://www.zip-codes.com/county/tn-jefferson.asp
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Tennessee's #28 most populous county
56,628 residents across 5 ZIPs — #28 of 95 Tennessee counties.

Standout ZIPs in this County


Most Populous
Dandridge · 18,301 people
32.3% of county total
Highest Income
Strawberry Plains · $70,938 median
1.1× county average
Largest Land Area
Dandridge · 111.7 sq mi
Spans the most ground
Fastest Growth
Dandridge · 11.9% (10-yr)
16,350 → 18,301 residents
Most Educated
Jefferson City · 26.8% bachelor's+
2,405 of 8,972 adults 25+

Things worth knowing about Jefferson County


56,628 residents live across 5 ZIPs covering 303 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 52,924 to 56,628 from 2014 to 2024 — a +7.0% change. 3 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 37871 (Strawberry Plains, $70,938 median) and poorest ZIP 37890 (White Pine, $59,355) are 22.2 miles apart — a 1.2× income gap across local geography.

Median home values vary 1.3× across this county — from $204,600 in 37820 (New Market) to $261,500 in 37725 (Dandridge).

Density varies across the county — from 123 people/sq mi in 37820 (New Market) to 311 in 37760 (Jefferson City).

Educational attainment ranges from 16.7% bachelor's+ in 37820 (New Market) to 26.8% in 37760 (Jefferson City) — the breadth of educational profiles across the area.

Within Tennessee, this is the #28 most populous of 95 counties and ranks #28 for median household income with the #40 fastest decade growth .

Weighted by population, the typical household earns about $66,971 across the county — reflecting what a typical resident sees, not a simple ZIP average.

21.1% of adults age 25+ hold a bachelor's degree or higher (8,692 of 41,142 reporting).

5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Jefferson County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
37725DandridgeStandard18,301$68,385111.711.9%
37760Jefferson CityStandard13,253$66,19042.6-0.1%
37871Strawberry PlainsStandard9,926$70,93839.611.0%
37820New MarketStandard8,327$66,61667.710.5%
37890White PineStandard6,821$59,35541.8-0.2%

Adjacent & Nearby Counties