| ZIP Codes: | 43 ZIP Codes (29 Standard, 11 PO Box, 3 Unique) [See All] |
| Area Codes: | 209 / 350 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 11:52:48 PM |
| Population: | 796,477 [See All] |
| FIPS: | 06077 |
| CBSA: | Stockton-Lodi, CA |
| Land Area: | 1,548 sq mi |
| Water Area: | 44 sq mi |
| Coordinates: | 37.9540, -121.2787 |
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796,477 residents live across 43 ZIPs covering 1,548 sq mi, served by 18 distinct USPS-recognized cities.
Population moved from 699,809 to 795,868 from 2014 to 2024 — a +13.7% change. 27 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 95391 (Tracy, $176,952 median) and poorest ZIP 95202 (Stockton, $31,020) are 22.9 miles apart — a 5.7× income gap across local geography.
Median home values vary 2.9× across this county — from $324,200 in 95205 (Stockton) to $947,000 in 95391 (Tracy).
Density varies 190× across the county — from 37 people/sq mi in 95236 (Linden) to 6,979 in 95207 (Stockton).
Educational attainment ranges from 4.3% bachelor's+ in 95205 (Stockton) to 54.0% in 95391 (Tracy) — the breadth of educational profiles across the area.
Within California, this is the #14 most populous of 58 counties and ranks #26 for median household income with the #6 fastest decade growth .
On the national stage, San Joaquin County is the #82 most populous US county .
Hosts 3 single-entity Unique ZIPs: 95211University Of The Pacific ; 95296Defense Dist Region ; and 95297Stockton Brm Zip .
Weighted by population, the typical household earns about $97,427 across the county — reflecting what a typical resident sees, not a simple ZIP average.
22.7% of adults age 25+ hold a bachelor's degree or higher (116,730 of 513,377 reporting). The most-educated ZIPs cluster around Tracy.
29 Standard delivery, 11 PO Box only, 3 single-entity Unique ZIPs serve this county.
3 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
Median household income spans 5.7× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 95206 | Stockton | Standard | 68,558 | $83,432 | 148.6 | 5.0% |
| 95376 | Tracy | Standard | 54,488 | $102,555 | 8.0 | 10.3% |
| 95207 | Stockton | Standard | 52,414 | $69,455 | 7.5 | 7.5% |
| 95240 | Lodi | Standard | 50,517 | $82,137 | 73.1 | 6.8% |
| 95336 | Manteca | Standard | 50,185 | $89,172 | 36.8 | 8.1% |
| 95337 | Manteca | Standard | 48,731 | $117,137 | 46.8 | 55.2% |
| 95209 | Stockton | Standard | 47,409 | $108,675 | 7.4 | 14.4% |
| 95210 | Stockton | Standard | 41,549 | $67,991 | 7.7 | 1.8% |
| 95205 | Stockton | Standard | 39,608 | $60,325 | 9.2 | 7.3% |
| 95377 | Tracy | Standard | 37,739 | $158,158 | 146.7 | 16.3% |
| 95330 | Lathrop | Standard | 35,395 | $125,421 | 21.5 | 99.9% |
| 95219 | Stockton | Standard | 31,713 | $112,268 | 113.9 | 11.8% |
| 95204 | Stockton | Standard | 31,035 | $75,548 | 5.6 | 6.1% |
| 95212 | Stockton | Standard | 28,437 | $111,720 | 21.3 | 12.6% |
| 95242 | Lodi | Standard | 28,427 | $104,721 | 92.6 | 8.6% |
| 95391 | Tracy | Standard | 25,574 | $176,952 | 24.1 | 106.9% |
| 95215 | Stockton | Standard | 24,847 | $71,888 | 101.3 | 4.6% |
| 95366 | Ripon | Standard | 18,954 | $112,097 | 34.7 | 13.3% |
| 95203 | Stockton | Standard | 15,930 | $63,411 | 6.6 | 1.4% |
| 95304 | Tracy | Standard | 15,841 | $115,007 | 121.6 | -11.9% |
| 95320 | Escalon | Standard | 13,500 | $82,572 | 89.0 | 6.0% |
| 95220 | Acampo | Standard | 7,931 | $114,637 | 58.6 | 5.7% |
| 95202 | Stockton | Standard | 7,066 | $31,020 | 1.1 | 30.6% |
| 95236 | Linden | Standard | 4,490 | $104,703 | 122.0 | 17.3% |
| 95258 | Woodbridge | Standard | 4,144 | $93,854 | 3.4 | 4.3% |
| 95231 | French Camp | Standard | 3,896 | $90,417 | 11.3 | -21.5% |
| 95237 | Lockeford | Standard | 3,639 | $87,117 | 9.9 | 21.3% |
| 95686 | Thornton | PO Box | 1,171 | $52,109 | 14.1 | 21.3% |
| 95227 | Clements | PO Box | 910 | $150,750 | 35.0 | -3.0% |
| 95211 | Stockton | Unique | 765 | — | 0.1 | -57.8% |
| 95253 | Victor | PO Box | 609 | $144,659 | 0.6 | — |
| 95385 | Vernalis | Standard | 602 | $53,409 | 30.5 | 16.9% |
| 95230 | Farmington | Standard | 403 | $128,339 | 137.5 | -36.5% |
| 95296 | Stockton | Unique | — | — | 0.0 | — |
| 95208 | Stockton | PO Box | — | — | 0.0 | — |
| 95267 | Stockton | PO Box | — | — | 0.0 | — |
| 95241 | Lodi | PO Box | — | — | 0.0 | — |
| 95269 | Stockton | PO Box | — | — | 0.0 | — |
| 95378 | Tracy | PO Box | — | — | 0.0 | — |
| 95201 | Stockton | PO Box | — | — | 0.0 | — |
| 95213 | Stockton | PO Box | — | — | 0.0 | — |
| 95297 | Stockton | Unique | — | — | 0.0 | — |
| 95234 | Holt | PO Box | — | — | 0.0 | — |