PlainZIP

Greenback, TN · standard

ZIP Code 37742

Loudon County, Tennessee - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

5,837
45/sq mi
$88,983
Median income
$301,800
Median home value
15.2%
Bachelor's or higher

The verdict

Greenback pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 28%
household income, US ZIPs
Top 33%
home value, US ZIPs
45
people per sq mi
92%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 37742 against every reporting US ZIP.

ZIP code 37742 is a mid-sized community (a standard USPS delivery area) in Greenback, Loudon County, Tennessee, home to 5,837 residents across 128.9 square miles, a density of 45 people per square mile, in the New York time zone.

ZIP 37742 lands in the middle-income range, with a median household income of $88,983 (34% above the Tennessee average), while per-capita income is $40,000. The poverty rate stands at 8.2% and the unemployment rate at 2.8%. Housing costs here run $301,800 for a typical home value (22% above the state average), with rent averaging $1,054 a month; 91.9% of homes are owner-occupied.

Educational attainment sits below the national norm: 15.2% of adults hold a bachelor's degree or higher, the median age is 42.2, and the average commute is 30 minutes. To put 37742 in local context, 3 ZIP codes within roughly 10 miles appear further down this page alongside 4 additional ZIPs in Loudon County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 37742

Top 5 sectors by establishment count in Greenback, TN

Which industries have the most business establishments in ZIP 37742.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 37742, Greenback, TN · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

5,837

Population

128.9

Area (sq mi)

45

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 37742?

42.2

Median Age

53.0%

Male

47.0%

Female

0.4%

Foreign-Born

White 97.8%
African American 0.1%
Asian 0.3%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.5%
Hispanic or Latino 0.4%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$88,983

Median Household Income

+34% vs state

$40,000

Per Capita Income

8.2%

Poverty Rate

2.8%

Unemployment Rate

30.1 min

Mean Commute Time

How ZIP 37742 ranks nationally

Greenback, TN household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$88,983 Top 28% higher than 72% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 57.6%
Bachelor's Degree or Higher 15.2%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

2,877

Total Housing Units

2,662

Occupied Units

215

Vacant Units

2.65

Avg Household Size

Occupancy Type

Owner 91.9%
Renter 8.1%

$301,800

Median Home Value

+22% vs state

$1,054

Median Rent

1993

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+1.3%

YoY Change (2024)

328

HPI Index (2000 = 100)

+228%

Total Change Since 2000

Home values in ZIP 37742 have increased 1.3% over the past year (2024). Since 2000, this ZIP has seen +228% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.0% 184
2021 +14.9% 211
2022 +31.5% 278
2023 +16.4% 323
2024 +1.3% 328

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 52 business establishments in ZIP 37742, employing approximately 281 people with a combined annual payroll of $9,604,000.

52

Businesses

281

Employees

$9.6M

Annual Payroll

6

Industry Sectors

Industry Establishments % of Total
Construction 11 21.1%
Other services (except public administration) 8 15.4%
Retail trade 6 11.5%
Administrative and support and waste management and remediation services 6 11.5%
Manufacturing 4 7.7%
Professional, scientific, and technical services 4 7.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 37742 vs 37801 →

ZIP 37742 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 37742 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 37742 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 37742 ranks #2 of 4 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
37801 Maryville, TN 25,124 5.2 mi
37737 Friendsville, TN 5,785 6.6 mi
37772 Lenoir City, TN 11,146 8.1 mi

More ZIP Codes in Loudon County

37774 standard
Loudon, TN
Pop: 18,321
37771 standard
Lenoir City, TN
Pop: 15,380
37772 standard
Lenoir City, TN
Pop: 11,146
37846 standard
Philadelphia, TN
Pop: 5,030

Related Areas

Loudon County Greenback, TN Tennessee

Frequently Asked Questions

What county is ZIP code 37742 in? ▼
ZIP code 37742 (Greenback) is located in Loudon County, Tennessee. Loudon County contains multiple ZIP codes, see the full list at /counties/loudon-tn.
What is the population of ZIP code 37742? ▼
ZIP code 37742 in Greenback, TN has a population of 5,837 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 37742? ▼
The median household income in ZIP 37742 is $88,983, which is 17% above the national average of $76,288.
What is the average home value in ZIP 37742? ▼
The median home value in ZIP 37742 is $301,800, which is 9% above the national average of $278,155.
What is the demographic makeup of ZIP 37742? ▼
The largest racial group in ZIP 37742 is White at 97.8%. Hispanic or Latino residents make up 0.4% of the population.
How many businesses are in ZIP code 37742? ▼
ZIP code 37742 has 52 business establishments employing approximately 281 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 37742? ▼
The top industries by establishment count in ZIP 37742 are: Construction (11), Other services (except public administration) (8), Retail trade (6). There are 6 industry sectors represented in total.
How have home values changed in ZIP code 37742? ▼
According to the FHFA House Price Index, home values in ZIP 37742 increased by 1.3% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 228%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 37742? ▼
In ZIP code 37742, 57.6% of residents aged 25+ have a high school diploma or higher, and 15.2% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 37742? ▼
The mean commute time for workers in ZIP code 37742 is 30.1 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 37742? ▼
In ZIP code 37742, approximately 91.9% of occupied housing units are owner-occupied and 8.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 37742? ▼
The poverty rate in ZIP code 37742 is 8.2% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.