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 High-density area
- $92,150
- Median income Above-median income area
- $359,600
- Median home value Above-median home value
- 47.0%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 37931 (Knoxville, TN) rose +2.9% from 2023 to 2024. The all-transactions index moved from 276.6 in 2023 to 284.5 in 2024 (2000 = 100).
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 average Tennessee ZIP), while per-capita income is $43,533. Both reported hardship measures are comparatively low in absolute terms: poverty is 7.1% and unemployment is 2.2%. Housing is both higher-cost and owner-heavy: median home value is $359,600 (45% above the average Tennessee ZIP), while 71.3% of occupied homes are owner-occupied and median rent is $1,542.
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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Knox County, so 37931 can be compared with both its immediate and county-level context.
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.
- Construction
Construction
61 establishments
- Health care and social assistance
Health care and social assistance
47 establishments
- Other services (except public administration)
Other services (except public administration)
41 establishments
- Retail trade
Retail trade
37 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
37 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, 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
Who lives in ZIP 37931?
37.7
Median Age
49.1%
Male
50.9%
Female
4.9%
Foreign-Born
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 ZIP avg
$43,533
Per Capita Income
7.1%
Poverty Rate
2.2%
Unemployment Rate
22.5 min
Mean Commute Time
How ZIP 37931 ranks among Tennessee ZIPs
Knoxville, TN household income vs. every Tennessee ZIP code
Median household income among 593 reporting Tennessee ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$92,150 Top 11% higher than 89% of 593 Tennessee ZIPs
Each bar is a $20K-wide band; taller bars hold more Tennessee 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
13,373housing units
13,373
Total Housing Units
12,538
Occupied Units
835
Vacant Units
2.52
Avg Household Size
Occupancy Type
$359,600
Median Home Value
+45% vs state ZIP avg
$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.
- 37922
Knoxville (37922)
33,180 residents
- 37921
Knoxville (37921)
28,233 residents
- 37919
Knoxville (37919)
28,194 residents
- 37923
Knoxville (37923)
27,457 residents
- 37931
Knoxville (37931)
26,109 residents
- 37716
Clinton (37716)
25,749 residents
- 37849
Powell (37849)
25,459 residents
- 37934
Knoxville (37934)
24,107 residents
- 37912
Knoxville (37912)
20,673 residents
What this shows Among its immediate neighbors, ZIP 37931 ranks #5 by population - useful context the national average alone can't give.
ZIP 37931 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 37922
Knoxville (37922)
$132,807 median income
- 37934
Knoxville (37934)
$132,264 median income
- 37932
Knoxville (37932)
$119,703 median income
- 37931
Knoxville (37931)
$92,150 median income
- 37849
Powell (37849)
$84,275 median income
- 37923
Knoxville (37923)
$73,699 median income
- 37919
Knoxville (37919)
$72,645 median income
- 37909
Knoxville (37909)
$66,984 median income
- 37716
Clinton (37716)
$64,915 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 37931, both outside TN so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (26,109 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Knox County
Related Areas
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.
Related
Take this with you
What to do with ZIP 37931's numbers, next.
- See how ZIP 37931 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Knoxville, TN ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.