County hub suburban California

San Joaquin County, CA

Aggregated demographic, housing, and geographic context for the 30 ZIP codes inside San Joaquin County, drawn from public Census ACS and SimpleMaps data.

ZIP codes
30
in this county
Total population
745,964
across all listed ZIPs
Cities
15
distinct city/town names
Avg density
1,006
people / sq mi
Avg median income
$69,559
household, ACS
Avg home value
$354,600
owner-occupied

ZIP codes in San Joaquin County

ZIPCityPopulationDensityMedian income
95206 Stockton 65,966 191 $69,559
95376 Tracy 55,314 2,804
95207 Stockton 52,154 2,779
95240 Lodi 49,623 281
95336 Manteca 47,294 476
95209 Stockton 45,150 2,116
95210 Stockton 43,009 2,184
95337 Manteca 42,713 363
95205 Stockton 39,723 1,706
95377 Tracy 33,630 118
95219 Stockton 30,242 100
95204 Stockton 30,135 2,195
95212 Stockton 28,561 521
95330 Lathrop 28,325 508
95242 Lodi 27,448 117
95215 Stockton 26,898 112
95366 Ripon 18,462 208
95203 Stockton 16,255 1,018
95304 Tracy 15,585 39
95320 Escalon 12,481 54
95220 Acampo 8,251 55
95202 Stockton 5,976 2,176
95231 French Camp 4,933 177
95236 Linden 4,756 14
95258 Woodbridge 4,108 493
95237 Lockeford 4,099 213
95211 Stockton 2,304 9,016
95686 Thornton 1,155 14
95227 Clements 901 9
95253 Victor 513 118

About San Joaquin County

Counties are the workhorse unit of American local government — they administer property taxes, run the courts and sheriff’s office, manage many road and library systems, and in much of the country they collect public health and zoning data that ZIP codes don’t. San Joaquin County in California contains roughly 30 ZIP codes spread across 15 distinct cities and unincorporated communities, with an aggregate population of about 745,964. Reading those ZIPs together at the county level smooths over neighborhood-by-neighborhood noise and surfaces the broader economic and demographic shape of the area. For block-level detail, drill into any individual ZIP profile or compare against the wider California index.

The average density across listed ZIPs sits at roughly 1,006, which classifies the county overall as a suburban environment. That label is a generalization — nearly every county contains both a relatively dense core and quieter outlying ZIPs, and the gap between them is often what determines where you actually want to live or open a business. Average median household income in our enriched ZIPs lands near $69,559, with average owner-occupied home values around $354,600; both numbers move dramatically as you cross from one ZIP to the next, so use the table above as a sorting tool, not a verdict.

If you’re moving into San Joaquin County, the county itself is also where most of your real-life paperwork will land — vehicle registration, voter registration, property recording, and school district enrollment in many states. Knowing the county that contains your prospective ZIP makes it much easier to look up the right tax assessor, election office, or school district website. Our relocation guide walks through the order in which to tackle these handoffs after a move.

For service-area planning, the county is also where most US business licensing and many sales-tax rules are administered. Service businesses scoping San Joaquin County should pair this aggregate view with the individual ZIP profiles to identify the densest, highest-income pockets first, then expand outward along whatever transportation corridor matches their delivery model.