ZIP Code Tabulation Area · California

ZIP Code 93428: San Luis Obispo County, CA

ZIP Code 93428 (San Luis Obispo County, California) has an estimated 6,399 residents in 2,974 households. The median household income is $99,762, the median home value is $932,500 and the median gross rent is $1,912/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

6,399

Margin of error ±698

Median household income

$99,762

Margin of error ±$10,941

Median home value

$932,500

Margin of error ±$51,999

Median gross rent

$1,912/mo

Margin of error ±$303

Median age

61.2 yrs

Margin of error ±3.6 yrs

Mean travel time to work

21.6 min

Margin of error ±7.4 min

How ZIP 93428 compares with California and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 9342861.2 yrsCalifornia37.9 yrsUnited States38.9 yrs

Median household income

ZIP 93428$99,762California$99,122United States$80,734

Per capita income

ZIP 93428$56,303California$49,513United States$44,673

Poverty rate

ZIP 9342810.0%California12.0%United States12.5%

Unemployment rate

ZIP 934288.3%California6.6%United States5.2%

Bachelor's degree or higher

ZIP 9342849.2%California37.1%United States35.7%

Median home value

ZIP 93428$932,500California$734,700United States$332,700

Median gross rent

ZIP 93428$1,912/moCalifornia$2,036/moUnited States$1,413/mo

Owner-occupied homes

ZIP 9342878.1%California55.9%United States65.2%

Mean travel time to work

ZIP 9342821.6 minCalifornia28.7 minUnited States26.4 min

Worked from home

ZIP 9342822.8%California17.2%United States15.1%

All figures for ZIP 93428

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 93428 — ACS 2020–2024 5-year estimates
MeasureZIP 93428Margin of errorCaliforniaUnited States
Total population6,399±69839,287,377334,922,499
Median age61.2 yrs±3.6 yrs37.9 yrs38.9 yrs
Households2,974±24313,548,091129,227,496
Median household income$99,762±$10,941$99,122$80,734
Per capita income$56,303±$6,093$49,513$44,673
Poverty rate10.0%±4.6 pts12.0%12.5%
Unemployment rate8.3%±4.6 pts6.6%5.2%
Bachelor's degree or higher49.2%±4.6 pts37.1%35.7%
Median home value$932,500±$51,999$734,700$332,700
Median gross rent$1,912/mo±$303$2,036/mo$1,413/mo
Owner-occupied homes78.1%±3.5 pts55.9%65.2%
Mean travel time to work21.6 min±7.4 min28.7 min26.4 min
Worked from home22.8%±6.2 pts17.2%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 93428
GroupZIP 93428CaliforniaUnited States
White alone, not Hispanic or Latino65.7%33.8%57.4%
Black or African American alone, not Hispanic or Latino0.1%5.2%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.3%0.5%
Asian alone, not Hispanic or Latino1.9%15.3%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.3%0.2%
Some other race alone, not Hispanic or Latino3.0%0.6%0.6%
Two or more races, not Hispanic or Latino2.9%4.4%4.3%
Hispanic or Latino (of any race)26.4%40.2%19.3%

Where ZIP 93428 is

State
California
Main county
San Luis Obispo County
Largest overlapping place
Cambria (11% of the ZIP's land area)
Land area
77.28 sq mi· about 83 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in San Luis Obispo County

93401 San Luis Obispo County, CA93402 Los Osos, CA93405 San Luis Obispo County, CA93410 California Polytechnic State University, CA93420 San Luis Obispo County, CA93422 Atascadero, CA93424 San Luis Obispo County, CA93430 San Luis Obispo County, CA93432 San Luis Obispo County, CA93433 Grover Beach, CA93442 San Luis Obispo County, CA93444 Nipomo, CA93445 San Luis Obispo County, CA93446 San Luis Obispo County, CA93449 Pismo Beach, CA93452 San Luis Obispo County, CA93453 San Luis Obispo County, CA93461 San Luis Obispo County, CA93465 San Luis Obispo County, CA

See every ZIP code in California, or compare ZIP 93428 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.