Residential delivery area · Tennessee
ZIP Code 37405: Chattanooga, TN
ZIP code 37405 uses the postal name Chattanooga, Tennessee and lies mostly in Marion County (75% of its land) with the rest in Hamilton County (Census 2020 ZIP-county file). About 18,000 people live there (Census Bureau, ACS 2020-2024), the 5th most populous of Chattanooga's 16 residential ZIP codes. Median household income is $81,337 (Census Bureau, ACS 2020-2024). By Census place, 20% of its land lies in Chattanooga, and 2% in smaller places; 78% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Chattanooga · 16 residential ZIPs
- County
- Marion County (75%); Hamilton County (25%)
- Census places
- Chattanooga
- Neighborhoods
- Fairhills, Hampton Heights, Mountain Ridge GeoNames
- Metro area
- Chattanooga, TN-GA
- House districts
- TN-4 (75%), TN-3 (25%) 119th Congress, by share of land
- State
- Tennessee
- Time zone
- Central
- Land area
- 54.3 sq mi · 333 people per sq mi
Where is ZIP code 37405?
37405 centers on 35.130°, -85.383° and covers 54.3 square miles of land plus 1.5 of water. It borders 8 ZIP codes: 37377, 37415, 37419, 37402, 37403, 37408, 37406, 37397.
The map draws ZIP code areas only. For the streets inside 37405, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 37405 compare with the rest of Chattanooga?
| Measure | 37405 | In Chattanooga | In Marion County | In TN |
|---|---|---|---|---|
| People (ACS 2020-2024) | 18,109 | 5th of 16 | 1st of 12 | 136th of 636 |
| Median household income | $81k | 2nd of 10 | 2nd of 7 | 99th of 425 |
| Median home value | $461k | 3rd of 13 | 2nd of 10 | 36th of 436 |
Its median household income is higher than in 64% of U.S. residential ZIP codes, and it is denser than 68% 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 37405?
The 2020 Census counted 18,231 people in 37405; the ACS, which samples households over 2020-2024, estimates 18,109. Between the 2010 and 2020 censuses its population grew 24.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 18,109
- 2020 Census count
- 18,231+24.9% since 2010 (14,597)
- Households
- 8,620
- Median age
- 36.7
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 37405?
Of the 18,109 people the ACS estimates in 37405, 17.4% are under 18 and 14.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (79.0%).
- Under 1817.4%
- 18 to 6468.6%
- 65 and older14.0%
- White, not Hispanic79.0%
- Other or two or more9.4%
- Hispanic or Latino4.6%
- Black, not Hispanic4.1%
- Asian, not Hispanic2.9%
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 37405 earn?
Median household income is $81,337 (ACS 2020-2024), the 2nd highest of the 7 ranked ZIP codes in Marion County. It is not measurably different from 2015-2019 ($72,208 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $81,337±$10,293
- Income per person
- $71,405
- Below the poverty line
- 13.4%
- Unemployed (of the labor force)
- 3.4%
- Adults 25+ with a bachelor's degree
- 53.3%
- Adjusted gross income per tax return, 2022
- $185,7219,220 returns; wages 43% 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 37405?
FHFA's house price index for 37405, built from repeat sales and appraisals of the same homes, rose 100% from 2015 to 2025 and rose 51% from 2020 to 2025, and moved +0.2% in 2025.
- Median home value (owners' estimate)
- $460,600
- Median gross rent
- $1,438
- Homes owned by their occupants
- 48.7%
- Housing units
- 9,796
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 37405?
633 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade88
- Accommodation and food services77
- Professional, scientific, and technical services76
- Other services (except public administration)73
- Health care and social assistance58
- Real estate and rental and leasing41
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 37405?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37377 | Signal Mountain | 17,188 | $120k | 5.8 mi |
| 37415 | Chattanooga | 24,181 | $71k | 5.8 mi |
| 37419 | Chattanooga | 5,980 | $75k | 5.8 mi |
| 37402 | Chattanooga | 3,953 | $24k | 6.9 mi |
| 37403 | Chattanooga | 6,413 | $81k | 7.5 mi |
| 37408 | Chattanooga | 3,502 | $81k | 7.9 mi |
| 37406 | Chattanooga | 13,364 | $45k | 8.7 mi |
| 37397 | Whitwell | 10,488 | $55k | 9.3 mi |
| 37450 | Chattanooga | 0 | – | 6.9 mi (near) |
| 37351 | Lupton City | 281 | $50k | 7.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.