PlainZIP

Knoxville, TN · standard

ZIP Code 37931

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

26,109
352/sq mi
$92,150
Median income
$359,600
Median home value
47.0%
Bachelor's or higher

The verdict

Knoxville pairs an upper-quartile household income with upper-quartile home values, in a low-density, homeowner-dominated area.

Top 25%
household income, US ZIPs
Top 25%
home value, US ZIPs
352
people per sq mi
71%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 37931 against every reporting US ZIP.

ZIP code 37931 is a densely settled ZIP (a standard USPS delivery area) in Knoxville, Knox County, Tennessee, with 26,109 residents across 74.2 square miles, a density of 352 people per square mile, in the New York time zone.

ZIP 37931 lands in the middle-income range, with a median household income of $92,150 (39% above the Tennessee average), while per-capita income is $43,533. 7.1% of residents live below the poverty line, and the unemployment rate reads 2.2%. Median home value sits at $359,600 (45% above the state average), median rent at $1,542 a month, and owner-occupancy at 71.3%.

A solid share of residents have a four-year degree: 47.0% of adults hold a bachelor's degree or higher, the median age is 37.7, and the average commute is 23 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 37931, plus 6 more within Knox County, give a clearer read than the national average alone.

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 37931

Top 5 sectors by establishment count in Knoxville, TN

Which industries have the most business establishments in ZIP 37931.

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 37931, Knoxville, 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

26,109

Population

74.2

Area (sq mi)

352

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 37931?

37.7

Median Age

49.1%

Male

50.9%

Female

4.9%

Foreign-Born

White 84.6%
African American 3.3%
Asian 2.0%
American Indian or Alaska Native 0.2%
Native Hawaiian or Pacific Islander 0.1%
Two or More Ethnicities 8.3%
Hispanic or Latino 5.7%

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?

$92,150

Median Household Income

+39% vs state

$43,533

Per Capita Income

7.1%

Poverty Rate

2.2%

Unemployment Rate

22.5 min

Mean Commute Time

How ZIP 37931 ranks nationally

Knoxville, TN household income vs. every US ZIP code

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

$92,150 Top 25% higher than 75% 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 68.9%
Bachelor's Degree or Higher 47.0%

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

What does housing look like?

13,373

Total Housing Units

12,538

Occupied Units

835

Vacant Units

2.52

Avg Household Size

Occupancy Type

Owner 71.3%
Renter 28.7%

$359,600

Median Home Value

+45% vs state

$1,542

Median Rent

1997

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

+2.9%

YoY Change (2024)

285

HPI Index (2000 = 100)

+185%

Total Change Since 2000

Home values in ZIP 37931 have increased 2.9% over the past year (2024). Since 2000, this ZIP has seen +185% cumulative appreciation.

Year Annual Change HPI Index
2020 +7.0% 180
2021 +12.7% 203
2022 +23.6% 251
2023 +10.0% 277
2024 +2.9% 285

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 409 business establishments in ZIP 37931, employing approximately 7,075 people with a combined annual payroll of $374,891,000.

409

Businesses

7,075

Employees

$374.9M

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Construction 61 14.9%
Health care and social assistance 47 11.5%
Other services (except public administration) 41 10.0%
Retail trade 37 9.1%
Administrative and support and waste management and remediation services 37 9.1%
Professional, scientific, and technical services 36 8.8%
Manufacturing 25 6.1%
Wholesale trade 24 5.9%
Real estate and rental and leasing 21 5.1%
Accommodation and food services 21 5.1%
Transportation and warehousing 14 3.4%
Finance and insurance 14 3.4%
Arts, entertainment, and recreation 11 2.7%
Information 9 2.2%
Management of companies and enterprises 5 1.2%
Educational services 4 1.0%

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 37931 vs 37923 →

ZIP 37931 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 37931 ranks #5 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 37931 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 37931 ranks #4 of 9 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
37923 Knoxville, TN 27,457 4.3 mi
37932 Knoxville, TN 14,527 5.4 mi
37921 Knoxville, TN 28,233 6.8 mi
37909 Knoxville, TN 15,168 6.1 mi
37922 Knoxville, TN 33,180 8.0 mi
37934 Knoxville, TN 24,107 7.7 mi
37849 Powell, TN 25,459 7.3 mi
37716 Clinton, TN 25,749 8.9 mi
37912 Knoxville, TN 20,673 8.1 mi
37919 Knoxville, TN 28,194 8.1 mi

More ZIP Codes in Knox County

37918 standard
Knoxville, TN
Pop: 42,835
37920 standard
Knoxville, TN
Pop: 39,087
37922 standard
Knoxville, TN
Pop: 33,180
37921 standard
Knoxville, TN
Pop: 28,233
37919 standard
Knoxville, TN
Pop: 28,194
37923 standard
Knoxville, TN
Pop: 27,457

Related Areas

Knox County Knoxville, TN Tennessee

Frequently Asked Questions

What county is ZIP code 37931 in? ▼
ZIP code 37931 (Knoxville) is located in Knox County, Tennessee. Knox County contains multiple ZIP codes, see the full list at /counties/knox-tn.
What is the population of ZIP code 37931? ▼
ZIP code 37931 in Knoxville, TN has a population of 26,109 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 37931? ▼
The median household income in ZIP 37931 is $92,150, which is 21% above the national average of $76,288.
What is the average home value in ZIP 37931? ▼
The median home value in ZIP 37931 is $359,600, which is 29% above the national average of $278,155.
What is the demographic makeup of ZIP 37931? ▼
The largest racial group in ZIP 37931 is White at 84.6%. Hispanic or Latino residents make up 5.7% of the population.
How many businesses are in ZIP code 37931? ▼
ZIP code 37931 has 409 business establishments employing approximately 7,075 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 37931? ▼
The top industries by establishment count in ZIP 37931 are: Construction (61), Health care and social assistance (47), Other services (except public administration) (41). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 37931? ▼
According to the FHFA House Price Index, home values in ZIP 37931 increased by 2.9% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 185%. 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 37931? ▼
In ZIP code 37931, 68.9% of residents aged 25+ have a high school diploma or higher, and 47.0% 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 37931? ▼
The mean commute time for workers in ZIP code 37931 is 22.5 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 37931? ▼
In ZIP code 37931, approximately 71.3% of occupied housing units are owner-occupied and 28.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 37931? ▼
The poverty rate in ZIP code 37931 is 7.1% 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.