Residential delivery area · Tennessee
ZIP Code 37870: Speedwell, TN
ZIP code 37870 uses the postal name Speedwell, Tennessee and lies mostly in Claiborne County (75% of its land), reaching into Campbell County and Union County (Census 2020 ZIP-county file). About 4,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $55,516 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Speedwell · its only residential ZIP
- County
- Claiborne County (75%); Campbell County (14%); Union County (10%)
- House district
- TN-2 119th Congress
- State
- Tennessee
- Time zone
- Eastern
- Land area
- 83.0 sq mi · 53 people per sq mi
Where is ZIP code 37870?
37870 centers on 36.463°, -83.834° and covers 83.0 square miles of land plus 3.5 of water. It borders 6 ZIP codes: 37866, 37724, 37825, 37729, 37766, 37879.
The map draws ZIP code areas only. For the streets inside 37870, 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).
How does 37870 compare with the rest of Claiborne County?
| Measure | 37870 | In Claiborne County | In TN |
|---|---|---|---|
| People (ACS 2020-2024) | 4,385 | 6th of 10 | 318th of 636 |
| Median household income | $56k | 2nd of 7 | 294th of 425 |
| Median home value | $126k | not ranked | not ranked |
37870's median home value is not ranked: its 90% margin of error (±$34,226) is more than a quarter of the figure ($126,400). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
Its median household income is higher than in 22% of U.S. residential ZIP codes, and it is denser than 43% 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 37870?
The 2020 Census counted 4,303 people in 37870; the ACS, which samples households over 2020-2024, estimates 4,385. Between the 2010 and 2020 censuses its population fell 6.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,385±633 (90% margin)
- 2020 Census count
- 4,303−6.0% since 2010 (4,580)
- Households
- 1,653
- Median age
- 46.6
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 37870?
Of the 4,385 people the ACS estimates in 37870, 18.2% are under 18 and 21.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (97.9%).
- Under 1818.2%
- 18 to 6460.1%
- 65 and older21.6%
- White, not Hispanic97.9%
- Other or two or more1.3%
- Hispanic or Latino0.5%
- Black, not Hispanic0.2%
- Asian, not Hispanic0.0%
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 37870 earn?
Median household income is $55,516 (ACS 2020-2024), the 2nd highest of the 7 ranked ZIP codes in Claiborne County. It rose from $44,316 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $55,516
- Income per person
- $25,313
- Below the poverty line
- 12.9%
- Unemployed (of the labor force)
- 4.3%
- Adults 25+ with a bachelor's degree
- 11.0%
- Adjusted gross income per tax return, 2022
- $53,7661,690 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 37870?
- Median home value (owners' estimate)
- $126,400
- Median gross rent
- $933
- Homes owned by their occupants
- 82.9%
- Housing units
- 2,269
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 37870?
34 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade8
- Construction6
- Transportation and warehousing4
- Manufacturing3
- Health care and social assistance3
- Other services (except public administration)3
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 37870?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37866 | Sharps Chapel | 2,468 | $77k | 8.0 mi |
| 37724 | Cumberland Gap | 2,214 | $32k | 9.1 mi |
| 37825 | New Tazewell | 8,409 | $50k | 9.2 mi |
| 37729 | Duff | 1,279 | $43k | 11.6 mi |
| 37766 | La Follette | 18,554 | $50k | 14.0 mi |
| 37879 | Tazewell | 11,854 | $48k | 17.8 mi |
| 37851 | Pruden | 0 | – | 7.5 mi (near) |
| 37715 | Clairfield | 806 | $26k | 9.3 mi (near) |
| 37730 | Eagan | 33 | $45k | 10.6 mi (near) |
| 40940 | Frakes, KY | 367 | – | 11.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.