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37742
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  2. ZIP Codes
  3. ZIP Code 37742
Tennessee (TN)Loudon CountyKnoxville865

ZIP Code 37742 — Greenback, TN

Loudon County * Knoxville metro

Compare

7.0K

Population

$89K

Median income

per household

$301.8K

Home value

8.2%

Poverty rate

What stands out

  • Median household income: $89K.
  • Median home value: $301.8K.
  • Poverty rate: 8.2%.

Categories vs U.S.

Economy

2 of 5 metrics better than U.S. benchmarks

Median household income

$89K

U.S.

$81K

Per-capita income

$40K

U.S.

$45K

Median home value

$301.8K

U.S.

$333K

Housing stress

Rent-burdened renters (≥30%)

11.5%

U.S.

51.1%

Severely rent-burdened (≥50%)

5.2%

U.S.

25.9%

Affordability Ratios

Rent-to-Income

14.2%

Below 30% threshold

Home-Value-to-Income

3.4×

Within typical 3-5x range

Income distribution

Share of households by income bracket (ACS).

< $50k
22.5%
$50–100k
35.4%
$100–200k
36.2%
$200k+
5.9%

Health

0 of 6 available metrics better than U.S.

CDC PLACES modeled ZCTA-level estimates (adult prevalence).

Obesity

36.7%

U.S.

33.3%

Diabetes

13.9%

U.S.

12.0%

Current smoking

17.2%

U.S.

13.1%

Connectivity

3 of 3 metrics better than U.S.

Best available speed

1,000Mbps

Gigabit speeds reported

100+ Mbps coverage

90.7%

U.S.

85.3%

Gigabit ready

19.4%

U.S.

8.6%

5G available

91.5%

U.S.

77.4%

Learning

Education metrics come from ACS 5-year estimates for ZIP Code Tabulation Areas (ZCTAs).

Bachelor's degree+ (age 25+)

15.2%

U.S.

35.7%

ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as noise.

School districts

Loudon County School District

Map

ZIP 37742

Greenback, TN

Population

7.0K

Area

49.4 sq mi

Density

142.6/sq mi

Neighbors

3773737772377743780137885
More Details

Census Tracts

4 tracts overlap this ZIP. Hover over segments to explore.

68%
19%
12%

Tract 604

67.6%

Tract 116.06

18.9%

Tract 116.03

12.1%

Tract 115.02

1.4%

Total tracts: 4Coverage: 100.0%

Representation

U.S. House

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area. Verify by address.

100%

TN-2

100%

Districts: 1Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
CDC PLACES
2025
Broadband
2020-12
Mobile
2025-11-24
Page Updated
2026-02-23

Release schedule and upstream dates: Sources.

Data sources

US Census Bureau (ACS 5-year)HUD USPS ZIP crosswalkUS Census TIGER/Line (geometry inputs)US Census TIGER/Line (school districts)US Census Bureau (ZCTA-to-tract relationship, 2020)US Census Bureau (2020 ZCTA-to-congressional-district relationship file, CD119)CDC PLACES (ZCTA)FCC (Form 477 broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ZIP pages use Census ZIP Code Tabulation Areas (ZCTAs), not USPS delivery routes.
  • Population density is computed as population ÷ land area.
  • Overlap percentages (tracts and districts) are derived from map geometry and are approximate.

Data accuracy & methodology

ZIP pages combine 2020–2024 ACS 5-year ZCTA estimates with other public datasets when available (see Sources). Connectivity metrics use FCC coverage data, not ACS. ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as statistical noise rather than precise changes.