Greenback is a city in Loudon County, Tennessee, home to about 1,378 people across 8.3 square miles. It has no ZIP code of its own: it’s part of 37742.
Homes sold for a median of $269 per square foot in the three months ending August 2026, a balanced market.
Each card is that ZIP code’s whole market, including any part outside Greenback. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Greenback’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | McGhee Tyson Airport (TYS)15 miles away |
|---|---|
| Nearest city of 250,000+ | Atlanta, GA132 miles away |
| Nearest city of 1 million+ | Chicago, IL467 miles away |
Straight-line distances from the center of Greenback; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Greenback had 1,102 residents in the 2020 census, up 16% since 2000.
It’s the 265th largest of 502 towns in Tennessee by population.
Loudon County grew from 10,838 residents in 1900 to 54,886 in 2020.
Loudon County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 89°F in summer, and winter lows average 28°F. About 55.2 inches of rain and melted snow fall in a typical year, with about 4 inches of snow.
Source: NOAA 1991–2020 climate normals, Lenoir City, TN weather station (10 miles away).
14,920 jobs at 1,027 businesses in Loudon County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
4 doctors and other health care providers list an office in Greenback.
Nearest hospitals
Providers with an office here
| Specialist doctors | 1 |
|---|---|
| Dentists | 1 |
| Physical and occupational therapists | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Loudon County, Blount County. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Greenback SchoolGreenback | Pre-K–12 | 634 | Public | 0.4 mi |
| Lanier ElementaryMaryville | Pre-K–5 | 333 | Public | 4.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.