County ProfileTN
Hamilton County
Population: 366,207 · 32 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
366,207
People
Median age
39.5
Housing
Total households
154,181
Income
Median household income
$76,183
Housing
Total housing units
168,013
Employment
Employment rate
61.2%
Education
Bachelor’s degree or higher
37.5%
Healthcare
Insured population
90.3%
County details
Local time 02:16:21(CT)| Name | Hamilton |
|---|---|
| Total ZIP codes | 32total |
| ZIP codes (by type) | 26 Standard6 PO Box |
| Area code | 423 |
| Timezone | Central Time (CT) |
| Coordinates | 35.159186, -85.2022955 |
| Land area | 542.2 sq miles(1,404.2 km²) |
Map of Hamilton county, Tennessee with ZIP codes
Cities and Communities in Hamilton County
Compare the largest cities in Hamilton County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Chattanooga | 181,099 | $64,523 | 20ZIPs |
| Hixson | 43,626 | — | 1ZIPs |
| Soddy Daisy | 13,070 | $75,113 | 2ZIPs |
| Collegedale | 11,109 | $70,246 | 1ZIPs |
| Signal Mountain | 8,852 | $141,008 | 1ZIPs |
| Harrison | 7,902 | $89,395 | 1ZIPs |
| Apison | 4,428 | $129,307 | 1ZIPs |
| Sale Creek | 3,021 | $53,932 | 1ZIPs |
| Birchwood | 2,825 | — | 1ZIPs |
| Lookout Mountain | 2,058 | $201,000 | 1ZIPs |
| Ooltewah | 684 | $62,292 | 1ZIPs |
| Lupton City | 376 | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Hamilton County
Review the most populated postal areas across Hamilton County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 37421 | Chattanooga | $82,517 | 51,686 |
| 37343 | Hixson | $82,227 | 43,626 |
| 37363 | Ooltewah | $97,399 | 41,120 |
| 37379 | Soddy Daisy | $88,875 | 28,552 |
| 37415 | Chattanooga | $70,972 | 23,580 |
| 37412 | Chattanooga | $62,508 | 21,881 |
| 37405 | Chattanooga | $81,337 | 18,231 |
| 37411 | Chattanooga | $56,579 | 17,499 |
| 37377 | Signal Mountain | $119,636 | 17,004 |
| 37416 | Chattanooga | $70,705 | 14,844 |
| 37404 | Chattanooga | $56,637 | 13,106 |
| 37341 | Harrison | $92,120 | 12,900 |
| 37406 | Chattanooga | $44,850 | 12,422 |
| 37407 | Chattanooga | $35,845 | 9,779 |
| 37419 | Chattanooga | $74,787 | 6,438 |
| 37403 | Chattanooga | $81,136 | 5,666 |
| 37302 | Apison | $128,885 | 4,934 |
| 37402 | Chattanooga | $24,214 | 4,464 |
| 37410 | Chattanooga | $28,708 | 4,082 |
| 37408 | Chattanooga | $81,250 | 3,353 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS