Residential delivery area · Tennessee
ZIP Code 37748: Harriman, TN
ZIP code 37748 uses the postal name Harriman, Tennessee and lies mostly in Roane County (70% of its land) with the rest in Morgan County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,883 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Coalfield (13%), Harriman (10%) and Midtown (4%), and 1% in smaller places; 72% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Harriman · its only residential ZIP
- County
- Roane County (70%); Morgan County (30%)
- Census places
- Coalfield (13%) census-designated place; Harriman (10%); Midtown (4%) census-designated place
- Neighborhood
- Sunnycrest GeoNames
- Metro area
- Knoxville, TN
- House district
- TN-3 119th Congress
- State
- Tennessee
- Time zone
- Eastern
- Land area
- 106.6 sq mi · 165 people per sq mi
Where is ZIP code 37748?
37748 centers on 35.945°, -84.516° and covers 106.6 square miles of land plus 5.7 of water. It borders 7 ZIP codes: 37829, 37719, 37763, 37887, 37854, 37840, 37830.
The map draws ZIP code areas only. For the streets inside 37748, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 37748 compare with the rest of Roane County?
| Measure | 37748 | In Roane County | In TN |
|---|---|---|---|
| People (ACS 2020-2024) | 17,575 | 4th of 9 | 141st of 636 |
| Median household income | $65k | 6th of 7 | 197th of 425 |
| Median home value | $197k | 8th of 9 | 285th of 436 |
Its median household income is higher than in 38% of U.S. residential ZIP codes, and it is denser than 60% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 37748?
The 2020 Census counted 17,227 people in 37748; the ACS, which samples households over 2020-2024, estimates 17,575. Between the 2010 and 2020 censuses its population fell 3.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,575
- 2020 Census count
- 17,227−3.5% since 2010 (17,857)
- Households
- 7,325
- Median age
- 45.8
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 37748?
Of the 17,575 people the ACS estimates in 37748, 17.5% are under 18 and 20.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (88.0%).
- Under 1817.5%
- 18 to 6461.6%
- 65 and older20.9%
- White, not Hispanic88.0%
- Black, not Hispanic5.6%
- Other or two or more3.6%
- Hispanic or Latino2.7%
- Asian, not Hispanic0.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 37748 earn?
Median household income is $64,883 (ACS 2020-2024), the 6th highest of the 7 ranked ZIP codes in Roane County. It rose from $53,111 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $64,883±$7,613
- Income per person
- $35,020
- Below the poverty line
- 13.2%
- Unemployed (of the labor force)
- 3.1%
- Adults 25+ with a bachelor's degree
- 20.2%
- Adjusted gross income per tax return, 2022
- $64,2047,690 returns; wages 70% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 37748?
FHFA's house price index for 37748, built from repeat sales and appraisals of the same homes, rose 140% from 2015 to 2025 and rose 82% from 2020 to 2025, and moved +7.2% in 2025.
- Median home value (owners' estimate)
- $196,900
- Median gross rent
- $792
- Homes owned by their occupants
- 75.3%
- Housing units
- 8,372
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 37748?
286 business establishments had a location in this ZIP code in 2023, 6 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade71
- Health care and social assistance39
- Other services (except public administration)37
- Accommodation and food services31
- Construction24
- Professional, scientific, and technical services17
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 37748?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37829 | Oakdale | 1,977 | $91k | 6.8 mi |
| 37719 | Coalfield | 45 | – | 7.2 mi |
| 37763 | Kingston | 16,984 | $81k | 8.6 mi |
| 37887 | Wartburg | 6,555 | $65k | 10.2 mi |
| 37854 | Rockwood | 12,478 | $56k | 11.5 mi |
| 37840 | Oliver Springs | 10,004 | $76k | 11.8 mi |
| 37830 | Oak Ridge | 33,038 | $72k | 12.7 mi |
| 37845 | Petros | 171 | $16k | 11.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.