Residential delivery area · California
ZIP Code 91931: Guatay, CA
ZIP code 91931 uses the postal name Guatay, California and lies entirely in San Diego County (Census 2020 ZIP-county file). About 490 people live there (Census Bureau, ACS 2020-2024). Median household income is $63,750 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- ZBP2023
- Town
- Guatay · its only residential ZIP
- County
- San Diego County
- Metro area
- San Diego-Chula Vista-Carlsbad, CA
- House district
- CA-48 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 8.2 sq mi · 60 people per sq mi
Where is ZIP code 91931?
91931 centers on 32.838°, -116.580° and covers 8.2 square miles of land. It borders 3 ZIP codes: 91962, 91916, 91901.
The map draws ZIP code areas only. For the streets inside 91931, 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 91931 compare with the rest of San Diego County?
| Measure | 91931 | In San Diego County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 494 | 106th of 116 | 1,533rd of 1,802 |
| Median household income | $64k | not ranked | not ranked |
| Median home value | – | not ranked | not ranked |
91931's income and home value are not ranked: it has fewer than 1,000 residents (494). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 45% of 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 91931?
The 2020 Census counted 481 people in 91931; the ACS, which samples households over 2020-2024, estimates 494. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 494±374 (90% margin)
- 2020 Census count
- 481
- Households
- 242
- Median age
- 65.2
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 91931?
Of the 494 people the ACS estimates in 91931, 11.9% are under 18 and 50.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (48.6%), then Hispanic or Latino (48.0%).
- Under 1811.9%
- 18 to 6437.2%
- 65 and older50.8%
- White, not Hispanic48.6%
- Hispanic or Latino48.0%
- Other or two or more3.4%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 91931 earn?
Median household income is $63,750 (ACS 2020-2024).
- Median household income
- $63,750±$38,725
- Income per person
- $34,239
- Below the poverty line
- 3.6%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 22.6%
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 91931?
- Median home value (owners' estimate)
- –
- Median gross rent
- –
- Homes owned by their occupants
- 81.4%
- Housing units
- 270
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 91931?
12 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction4
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 91931?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91962 | Pine Valley | 2,574 | $143k | 3.6 mi |
| 91916 | Descanso | 1,710 | $103k | 5.9 mi |
| 91901 | Alpine | 18,197 | $114k | 8.7 mi |
| 91948 | Mount Laguna | 93 | $55k | 6.5 mi (near) |
| 91963 | Potrero | 689 | – | 13.1 mi (near) |
| 91906 | Campo | 3,325 | $63k | 13.8 mi (near) |
| 91935 | Jamul | 9,114 | $152k | 15.1 mi (near) |
| 91917 | Dulzura | 749 | – | 16.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.