Residential delivery area · California
ZIP Code 95603: Auburn, CA
ZIP code 95603 uses the postal name Auburn, California and lies entirely in Placer County (Census 2020 ZIP-county file). About 28,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Auburn's 3 residential ZIP codes. Median household income is $85,357 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Auburn (19%) and North Auburn (19%); 63% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Auburn · 3 residential ZIPs
- County
- Placer County
- Census places
- Auburn (19%); North Auburn (19%) census-designated place
- Metro area
- Sacramento-Roseville-Folsom, CA
- House district
- CA-3 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 35.8 sq mi · 795 people per sq mi
Where is ZIP code 95603?
95603 centers on 38.911°, -121.086° and covers 35.8 square miles of land plus 0.7 of water. It borders 6 ZIP codes: 95658, 95602, 95614, 95703, 95664, 95631.
The map draws ZIP code areas only. For the streets inside 95603, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 95603 compare with the rest of Auburn?
| Measure | 95603 | In Auburn | In Placer County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 28,432 | 1st of 3 | 7th of 33 | 638th of 1,802 |
| Median household income | $85k | 2nd of 2 | 16th of 16 | 765th of 1,189 |
| Median home value | $651k | 2nd of 2 | 17th of 23 | 739th of 1,317 |
Its median household income is higher than in 68% of U.S. residential ZIP codes, and it is denser than 76% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 95603?
The 2020 Census counted 28,021 people in 95603; the ACS, which samples households over 2020-2024, estimates 28,432. Between the 2010 and 2020 censuses its population grew 0.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 28,432
- 2020 Census count
- 28,021+0.6% since 2010 (27,844)
- Households
- 11,738
- Median age
- 48.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 95603?
Of the 28,432 people the ACS estimates in 95603, 18.1% are under 18 and 26.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (73.3%), then Hispanic or Latino (15.0%).
- Under 1818.1%
- 18 to 6455.4%
- 65 and older26.5%
- White, not Hispanic73.3%
- Hispanic or Latino15.0%
- Other or two or more8.6%
- Asian, not Hispanic2.4%
- Black, not Hispanic0.7%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 95603 earn?
Median household income is $85,357 (ACS 2020-2024), the 16th highest of the 16 ranked ZIP codes in Placer County. It is not measurably different from 2015-2019 ($83,751 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $85,357
- Income per person
- $51,603
- Below the poverty line
- 12.5%
- Unemployed (of the labor force)
- 4.7%
- Adults 25+ with a bachelor's degree
- 33.6%
- Adjusted gross income per tax return, 2022
- $106,67413,160 returns; wages 56% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 95603?
FHFA's house price index for 95603, built from repeat sales and appraisals of the same homes, rose 76% from 2015 to 2025 and rose 34% from 2020 to 2025, and moved +2.2% in 2025.
- Median home value (owners' estimate)
- $650,500
- Median gross rent
- $1,565
- Homes owned by their occupants
- 69.6%
- Housing units
- 12,467
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 95603?
1,200 business establishments had a location in this ZIP code in 2023, 12 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade171
- Professional, scientific, and technical services164
- Health care and social assistance162
- Construction127
- Other services (except public administration)126
- Accommodation and food services125
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 95603?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 95658 | Newcastle | 5,894 | $127k | 4.9 mi |
| 95602 | Auburn | 19,701 | $98k | 5.6 mi |
| 95614 | Cool | 3,954 | $133k | 6.0 mi |
| 95703 | Applegate | 2,589 | $100k | 7.5 mi |
| 95664 | Pilot Hill | 1,341 | $118k | 8.0 mi |
| 95631 | Foresthill | 6,946 | $104k | 20.4 mi |
| 95663 | Penryn | 3,090 | $156k | 6.4 mi (near) |
| 95722 | Meadow Vista | 4,092 | $126k | 7.3 mi (near) |
| 95650 | Loomis | 13,405 | $118k | 8.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.