Area Code Profile
423, TN
Browse ZIP codes and key stats for 423, Tennessee: population, households, income, education, health coverage, and more.
Area Code details
Local time 00:38:41(CT)| Location | 423, TN |
|---|---|
| Population (ZIP areas) | 1,478,233(sum of local ZIP code populations) |
| Total ZIP codes | 160total |
| ZIP codes (by type) | 150 Standard10 PO Box |
| Cities Covered | |
| Counties Covered |
Map of area code 423
ZIP codes in area code 423
160 ZIP codes covered by this area code.
Cities served by area code 423
136 cities covered by this area code.
| City | ZIP codes | Median incomeHousehold | Population |
|---|---|---|---|
| Chattanooga | 20 | $64,523 | 181,099 |
| Johnson City | 6 | $57,254 | 71,046 |
| Kingsport | 6 | $52,490 | 55,442 |
| Cleveland | 5 | $58,559 | 47,356 |
| Hixson | 1 | — | 43,626 |
| Morristown | 4 | $47,917 | 30,431 |
| Bristol | 3 | $58,162 | 27,147 |
| Greeneville | 3 | $49,889 | 15,479 |
| Elizabethton | 2 | $46,975 | 14,546 |
| Athens | 2 | $53,929 | 14,084 |
| Soddy Daisy | 2 | $75,113 | 13,070 |
| Collegedale | 1 | $70,246 | 11,109 |
| Signal Mountain | 1 | $141,008 | 8,852 |
| Talbott | 1 | — | 8,739 |
| Chuckey | 1 | — | 8,699 |
| Piney Flats | 2 | — | 8,207 |
| Harrison | 1 | $89,395 | 7,902 |
| La Follette | 1 | $37,581 | 7,430 |
| Dayton | 1 | $49,719 | 7,065 |
| Church Hill | 1 | $65,526 | 6,998 |
| Newport | 2 | $31,250 | 6,868 |
| Sweetwater | 1 | $45,451 | 6,312 |
| Limestone | 1 | — | 6,234 |
| Erwin | 1 | $47,487 | 6,083 |
| Harriman | 1 | $44,653 | 5,892 |
| Jonesborough | 1 | $74,015 | 5,860 |
| Mount Carmel | 1 | $68,866 | 5,473 |
| Rockwood | 1 | $47,791 | 5,444 |
| Dunlap | 1 | $45,589 | 5,357 |
| Mc Donald | 1 | — | 5,168 |
| Madisonville | 1 | $39,878 | 5,132 |
| Afton | 1 | — | 4,864 |
| Rogersville | 1 | $47,500 | 4,671 |
| Georgetown | 1 | — | 4,650 |
| Apison | 1 | $129,307 | 4,428 |
| Harrogate | 1 | $65,586 | 4,400 |
| Speedwell | 1 | — | 4,303 |
| Unicoi | 1 | $42,424 | 3,833 |
| Oneida | 1 | $48,622 | 3,787 |
| Ten Mile | 1 | — | 3,690 |
| Old Fort | 1 | — | 3,678 |
| Jasper | 1 | $73,013 | 3,612 |
| Etowah | 1 | $39,291 | 3,603 |
| Whitesburg | 1 | — | 3,437 |
| Oliver Springs | 1 | $51,183 | 3,297 |
| Blountville | 1 | $54,754 | 3,120 |
| South Pittsburg | 1 | $57,865 | 3,106 |
| Sale Creek | 1 | $53,932 | 3,021 |
| Birchwood | 1 | — | 2,825 |
| New Tazewell | 2 | $53,567 | 2,769 |
| Lancing | 1 | — | 2,716 |
| Evensville | 1 | — | 2,713 |
| Pioneer | 1 | — | 2,602 |
| Sewanee | 2 | $136,111 | 2,535 |
| Mosheim | 1 | $48,986 | 2,479 |
| Mountain City | 1 | $38,818 | 2,415 |
| Tazewell | 1 | $41,836 | 2,348 |
| Jacksboro | 1 | $68,750 | 2,306 |
| Thorn Hill | 1 | — | 2,235 |
| Caryville | 1 | $56,394 | 2,212 |
| Midway | 1 | — | 2,200 |
| Del Rio | 1 | — | 2,175 |
| Jellico | 1 | $41,467 | 2,154 |
| Lookout Mountain | 1 | $201,000 | 2,058 |
| Hampton | 1 | $39,028 | 2,030 |
| Deer Lodge | 1 | — | 1,959 |
| Spring City | 1 | $38,975 | 1,949 |
| Surgoinsville | 1 | $53,854 | 1,882 |
| Mohawk | 1 | — | 1,834 |
| Pikeville | 1 | $37,688 | 1,824 |
| Bluff City | 1 | $61,059 | 1,822 |
| Whitwell | 1 | $67,774 | 1,641 |
| Vonore | 1 | $58,317 | 1,574 |
| Turtletown | 1 | — | 1,573 |
| Decatur | 1 | $42,578 | 1,563 |
| Benton | 1 | $29,414 | 1,523 |
| Grandview | 1 | — | 1,499 |
| Englewood | 1 | $51,094 | 1,483 |
| Graysville | 1 | $40,000 | 1,471 |
| Spencer | 1 | $46,705 | 1,462 |
| Bybee | 1 | — | 1,407 |
| Duff | 1 | — | 1,381 |
| Sneedville | 1 | $24,500 | 1,282 |
| Huntsville | 1 | $31,313 | 1,270 |
| Fall Branch | 1 | $50,208 | 1,248 |
| Roan Mountain | 1 | $55,625 | 1,078 |
| Shady Valley | 1 | — | 963 |
| Winfield | 1 | $34,205 | 947 |
| Reliance | 1 | — | 916 |
| Telford | 1 | $69,200 | 909 |
| Flag Pond | 1 | — | 879 |
| Mooresburg | 1 | $43,387 | 877 |
| Hartford | 1 | — | 862 |
| Trade | 1 | — | 851 |
| Wartburg | 1 | $30,625 | 848 |
| Clairfield | 1 | — | 835 |
| Russellville | 1 | $48,203 | 822 |
| Cosby | 1 | $91,563 | 807 |
| Eidson | 1 | — | 786 |
| Delano | 1 | $121,250 | 777 |
| Niota | 1 | $61,528 | 772 |
| Tellico Plains | 1 | $45,625 | 762 |
| Bulls Gap | 1 | $52,857 | 756 |
| Newcomb | 1 | — | 712 |
| Riceville | 1 | $51,100 | 688 |
| Ooltewah | 1 | $62,292 | 684 |
| Charleston | 1 | $72,763 | 664 |
| Laurel Bloomery | 1 | — | 661 |
| Helenwood | 1 | — | 635 |
| Sequatchie | 1 | $27,679 | 622 |
| Palmer | 1 | $56,447 | 551 |
| Calhoun | 1 | $49,028 | 536 |
| Sunbright | 1 | $59,375 | 519 |
| Kyles Ford | 1 | — | 510 |
| Guild | 1 | — | 472 |
| Ducktown | 1 | — | 461 |
| Petros | 1 | — | 459 |
| Copperhill | 1 | $45,417 | 443 |
| Milligan College | 1 | — | 392 |
| Lupton City | 1 | — | 376 |
| Watauga | 1 | $62,917 | 353 |
| Briceville | 1 | — | 334 |
| Cumberland Gap | 1 | $42,500 | 313 |
| Butler | 1 | $64,188 | 297 |
| Elgin | 1 | — | 297 |
| Whiteside | 1 | — | 274 |
| Farner | 1 | $29,464 | 267 |
| Robbins | 1 | $30,737 | 254 |
| Parrottsville | 1 | $48,452 | 217 |
| Ocoee | 1 | $181,250 | 201 |
| Oakdale | 1 | $62,083 | 191 |
| Coker Creek | 1 | — | 150 |
| Conasauga | 1 | — | 95 |
| Eagan | 1 | — | 57 |
| Rugby | 1 | — | 40 |
| Pruden | 1 | — | — |
Counties served by area code 423
31 counties covered by this area code.
| County | ZIP codes | Median incomeHousehold | Population |
|---|---|---|---|
| Hamilton County | 32 | $76,183 | 366,207 |
| Sullivan County | 13 | $58,807 | 158,163 |
| Washington County | 10 | $62,809 | 133,001 |
| Bradley County | 8 | $66,552 | 108,620 |
| Anderson County | 9 | $66,183 | 77,123 |
| Greene County | 8 | $56,194 | 70,152 |
| Hamblen County | 6 | $55,454 | 64,499 |
| Hawkins County | 7 | $56,936 | 56,721 |
| Carter County | 6 | $50,135 | 56,356 |
| Jefferson County | 6 | $66,114 | 54,683 |
| Roane County | 4 | $71,885 | 53,404 |
| McMinn County | 7 | $61,470 | 53,276 |
| Monroe County | 5 | $56,895 | 46,250 |
| Franklin County | 9 | $63,494 | 42,774 |
| Campbell County | 7 | $51,557 | 39,272 |
| Cocke County | 7 | $48,016 | 35,999 |
| Rhea County | 5 | $55,033 | 32,870 |
| Claiborne County | 9 | $49,379 | 32,043 |
| Marion County | 6 | $61,824 | 28,837 |
| Grainger County | 6 | $50,538 | 23,527 |
| Scott County | 6 | $44,711 | 21,850 |
| Morgan County | 8 | $65,954 | 21,035 |
| Johnson County | 5 | $53,129 | 17,948 |
| Unicoi County | 3 | $52,218 | 17,928 |
| Polk County | 10 | $62,522 | 17,544 |
| Sequatchie County | 1 | $58,750 | 15,826 |
| Bledsoe County | 1 | $54,720 | 14,913 |
| Grundy County | 8 | $47,593 | 13,529 |
| Meigs County | 2 | $61,375 | 12,758 |
| Hancock County | 2 | $34,960 | 6,662 |
| Van Buren County | 1 | $54,931 | 6,168 |
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