Residential delivery area · Tennessee
ZIP Code 37923: Knoxville, TN
ZIP code 37923 uses the postal name Knoxville, Tennessee and lies entirely in Knox County (Census 2020 ZIP-county file). About 30,000 people live there (Census Bureau, ACS 2020-2024), the 6th most populous of Knoxville's 19 residential ZIP codes. Median household income is $73,699 (Census Bureau, ACS 2020-2024). By Census place, 25% of its land lies in Knoxville; 76% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Knoxville · 19 residential ZIPs
- County
- Knox County
- Census places
- Knoxville
- Metro area
- Knoxville, TN
- House district
- TN-2 119th Congress
- State
- Tennessee
- Time zone
- Eastern
- Land area
- 11.1 sq mi · 2,717 people per sq mi
- PO Box ZIPs
- 12 more ZIP codes use the name Knoxville for PO boxes or single organizations
Where is ZIP code 37923?
37923 centers on 35.928°, -84.081° and covers 11.1 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 37909, 37931, 37919, 37922, 37921, 37932.
The map draws ZIP code areas only. For the streets inside 37923, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 37923 compare with the rest of Knoxville?
| Measure | 37923 | In Knoxville | In Knox County | In TN |
|---|---|---|---|---|
| People (ACS 2020-2024) | 30,131 | 6th of 19 | 6th of 28 | 67th of 636 |
| Median household income | $74k | 7th of 15 | 10th of 23 | 131st of 425 |
| Median home value | $333k | 6th of 16 | 6th of 24 | 99th of 436 |
Its median household income is higher than in 53% of U.S. residential ZIP codes, and it is denser than 88% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 37923?
The 2020 Census counted 29,705 people in 37923; the ACS, which samples households over 2020-2024, estimates 30,131. Between the 2010 and 2020 censuses its population grew 8.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 30,131
- 2020 Census count
- 29,705+8.2% since 2010 (27,457)
- Households
- 12,990
- Median age
- 36.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 37923?
Of the 30,131 people the ACS estimates in 37923, 21.3% are under 18 and 15.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (76.9%).
- Under 1821.3%
- 18 to 6463.5%
- 65 and older15.2%
- White, not Hispanic76.9%
- Hispanic or Latino8.6%
- Black, not Hispanic6.0%
- Other or two or more4.5%
- Asian, not Hispanic4.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 37923 earn?
Median household income is $73,699 (ACS 2020-2024), the 10th highest of the 23 ranked ZIP codes in Knox County. It is not measurably different from 2015-2019 ($76,010 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $73,699
- Income per person
- $40,649
- Below the poverty line
- 10.5%
- Unemployed (of the labor force)
- 4.6%
- Adults 25+ with a bachelor's degree
- 46.7%
- Adjusted gross income per tax return, 2022
- $75,74114,990 returns; wages 70% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 37923?
FHFA's house price index for 37923, built from repeat sales and appraisals of the same homes, rose 122% from 2015 to 2025 and rose 73% from 2020 to 2025, and moved +2.4% in 2025.
- Median home value (owners' estimate)
- $333,000
- Median gross rent
- $1,371
- Homes owned by their occupants
- 59.7%
- Housing units
- 14,152
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 37923?
897 business establishments had a location in this ZIP code in 2023, 59 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance159
- Professional, scientific, and technical services115
- Retail trade91
- Accommodation and food services84
- Finance and insurance80
- Other services (except public administration)70
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 37923?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37909 | Knoxville | 16,774 | $67k | 3.5 mi |
| 37931 | Knoxville | 31,842 | $92k | 4.2 mi |
| 37919 | Knoxville | 31,754 | $73k | 4.6 mi |
| 37922 | Knoxville | 40,394 | $133k | 4.8 mi |
| 37921 | Knoxville | 28,717 | $60k | 5.6 mi |
| 37932 | Knoxville | 25,424 | $120k | 6.6 mi |
| 37934 | Knoxville | 28,272 | $132k | 6.6 mi (near) |
| 37777 | Louisville | 12,877 | $76k | 7.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.