County ZIP codes · Texas · FIPS 48423
Smith County, TX ZIP Codes
Smith County, Texas has 28 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 23 residential and 5 for PO boxes or a single organization. 15 of the residential ones lie mainly in Smith County and 8 mainly in a neighboring county; 8 cross the county line. Median household income ranges from $51,564 in 75702 (Tyler) to $93,462 in 75771 (Lindale) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Smith County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $58,138 and $84,954.
They carry 14 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 23 residential ZIP codes in Smith County
15 ZIP codes lie mainly in Smith County; 8 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 75703 | Tyler | 46,039 | 836 | $79k | $336k | 100% |
| 75701 | Tyler | 36,344 | 2,584 | $66k | $214k | 100% |
| 75702 | Tyler | 27,927 | 1,981 | $52k | $115k | 100% |
| 75771 | Lindale | 21,238 | 145 | $94k | $302k | 100% |
| 75707 | Tyler | 17,532 | 335 | $85k | $275k | 100% |
| 75791 | Whitehouse | 15,786 | 401 | $92k | $267k | 100% |
| 75762 | Flint | 15,704 | 351 | $90k | $300k | 100% |
| 75708 | Tyler | 9,732 | 172 | $85k | $157k | 100% |
| 75706 | Tyler | 9,560 | 127 | $62k | $135k | 100% |
| 75704 | Tyler | 8,913 | 134 | $56k | $155k | 100% |
| 75709 | Tyler | 6,015 | 289 | $76k | $241k | 100% |
| 75792 | Winona | 3,898 | 49 | $54k | $169k | 100% |
| 75750 | Arp | 3,132 | 64 | $51k | $172k | 100% |
| 75705 | Tyler | 1,704 | 66 | $81k | $197k | 100% |
| 75711 | Tyler | 156 | 8,667 | – | – | 100% |
Partly in Smith County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 75789 | Troup | 9,095 | 49 | $83k | $202k | 36% |
| 75647 | Gladewater | 13,299 | 150 | $66k | $168k | 32% |
| 75757 | Bullard | 14,328 | 166 | $91k | $276k | 31% |
| 75773 | Mineola | 14,230 | 80 | $58k | $246k | 18% |
| 75684 | Overton | 8,040 | 88 | $57k | $156k | 17% |
| 75662 | Kilgore | 25,034 | 197 | $70k | $174k | 8% |
| 75790 | Van | 3,915 | 107 | $65k | $174k | 4% |
| 75140 | Grand Saline | 8,469 | 73 | $55k | $169k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
8 ZIP codes of Smith County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Smith | Elsewhere |
|---|---|---|
| 75662 | 8% | Gregg County 53%; Rusk County 40% |
| 75757 | 31% | Cherokee County 69% |
| 75773 | 18% | Wood County 82% |
| 75647 | 32% | Gregg County 43%; Upshur County 25% |
| 75789 | 36% | Cherokee County 64% |
| 75140 | 2% | Van Zandt County 98% |
| 75684 | 17% | Rusk County 83% |
| 75790 | 4% | Van Zandt County 96% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Smith County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Smith County's ZIP codes use 3 prefixes: 751, 756 and 757.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 751 | Dallas, TX (SCF 752) | 1 | 62 |
| 756 | Shreveport, LA (SCF 710) | 3 | 57 |
| 757 | Dallas, TX (SCF 752) | 24 | 47 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.