Residential delivery area · California
ZIP Code 91977: La Presa (Spring Valley), CA
ZIP code 91977 is in La Presa (postal name Spring Valley), California, entirely in San Diego County (Census 2020 ZIP-county file). About 61,000 people live there (Census Bureau, ACS 2020-2024), the more populous of Spring Valley's 2 residential ZIP codes. Median household income is $99,657 (Census Bureau, ACS 2020-2024). By Census place, its land lies in La Presa (54%), Spring Valley (34%) and Casa de Oro-Mount Helix (12%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Spring Valley · 2 residential ZIPs
- County
- San Diego County
- Census places
- La Presa (54%) census-designated place; Spring Valley (34%) census-designated place; Casa de Oro-Mount Helix (12%) census-designated place
- Metro area
- San Diego-Chula Vista-Carlsbad, CA
- House districts
- CA-51 (88%), CA-48 (12%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 9.9 sq mi · 6,157 people per sq mi
Where is ZIP code 91977?
91977 centers on 32.726°, -116.994° and covers 9.9 square miles of land plus 0.5 of water. It borders 6 ZIP codes: 91941, 91945, 91902, 92114, 91978, 92139.
The map draws ZIP code areas only. For the streets inside 91977, 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 91977 compare with the rest of Spring Valley?
| Measure | 91977 | In Spring Valley | In San Diego County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 61,064 | 1st of 2 | 10th of 116 | 114th of 1,802 |
| Median household income | $100k | 2nd of 2 | 56th of 85 | 588th of 1,189 |
| Median home value | $666k | 1st of 2 | 71st of 89 | 718th of 1,317 |
Its median household income is higher than in 81% of U.S. residential ZIP codes, and it is denser than 95% 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 91977?
The 2020 Census counted 60,795 people in 91977; the ACS, which samples households over 2020-2024, estimates 61,064. Between the 2010 and 2020 censuses its population grew 4.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 61,064
- 2020 Census count
- 60,795+4.2% since 2010 (58,368)
- Households
- 19,118
- Median age
- 35.8
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 91977?
Of the 61,064 people the ACS estimates in 91977, 23.6% are under 18 and 14.0% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (47.6%), then White (not Hispanic) (28.4%).
- Under 1823.6%
- 18 to 6462.4%
- 65 and older14.0%
- Hispanic or Latino47.6%
- White, not Hispanic28.4%
- Black, not Hispanic11.3%
- Asian, not Hispanic7.2%
- Other or two or more5.4%
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 91977 earn?
Median household income is $99,657 (ACS 2020-2024), the 56th highest of the 85 ranked ZIP codes in San Diego County. It rose from $81,162 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $99,657
- Income per person
- $39,866
- Below the poverty line
- 9.7%
- Unemployed (of the labor force)
- 9.0%
- Adults 25+ with a bachelor's degree
- 27.7%
- Adjusted gross income per tax return, 2022
- $64,06729,030 returns; wages 78% 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 91977?
FHFA's house price index for 91977, built from repeat sales and appraisals of the same homes, rose 108% from 2015 to 2025 and rose 52% from 2020 to 2025, and moved +0.3% in 2025.
- Median home value (owners' estimate)
- $665,600
- Median gross rent
- $1,925
- Homes owned by their occupants
- 63.8%
- Housing units
- 19,669
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 91977?
829 business establishments had a location in this ZIP code in 2023, 119 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction198
- Retail trade102
- Health care and social assistance93
- Other services (except public administration)78
- Accommodation and food services69
- Administrative and support and waste management and remediation services67
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 91977?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91941 | La Mesa | 33,218 | $115k | 2.3 mi |
| 91945 | Lemon Grove | 27,745 | $88k | 2.4 mi |
| 91902 | Bonita | 17,698 | $123k | 3.7 mi |
| 92114 | San Diego | 65,745 | $98k | 3.8 mi |
| 91978 | Spring Valley | 10,014 | $113k | 4.1 mi |
| 92139 | San Diego | 34,703 | $96k | 4.5 mi |
| 91942 | La Mesa | 41,424 | $93k | 3.9 mi (near) |
| 91914 | Chula Vista | 16,877 | $191k | 4.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.