91931 ZIP Code, Guatay, CA
91931 is a ZIP code in Guatay, California in San Diego County. It covers 8.2 square miles of land. The closest ZIP codes are 91962, 91916 and 91948. 494 people live here in 242 households, fewer than in most California ZIP codes. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (81%). Median household income is $63,750, well below the California median of $99,122; the median age is 65.2, older than most ZIP codes.
Quick facts
- Mailing city: Guatay, CA
- County: San Diego County
- Land area: 8.2 sq mi
- Population: 494
- Median household income: $63,750
Key figures
| Measure | Value |
|---|---|
| Residents | 494 |
| Households | 242 |
| Median household income | $63,750 |
| Income per person | $34,239 |
| Median age | 65.2 |
| Homeowners | 81.4% |
| Median home value | not published |
| Median rent | not published |
| Bachelor's degree or higher | 22.6% |
| Average commute (minutes) | not published |
| Households with kids under 18 | 18.6% |
| Moved in the past year | 14.5% |
| Below the poverty line | 3.6% |
| Broadband internet | 83.1% |
| Speak a non-English language at home | 34.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 7.4% |
| $10–15K | 0.0% |
| $15–25K | 0.0% |
| $25–35K | 0.0% |
| $35–50K | 7.0% |
| $50–75K | 35.5% |
| $75–100K | 36.0% |
| $100–150K | 0.0% |
| $150–200K | 14.0% |
| $200K+ | 0.0% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.9% |
| 10–19 | 0.0% |
| 20–24 | 12.8% |
| 25–34 | 21.1% |
| 35–44 | 0.0% |
| 45–54 | 0.0% |
| 55–64 | 3.4% |
| 65–74 | 30.2% |
| 75+ | 20.6% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 27.8% |
| Owned outright | 45.2% |
| Rented | 16.7% |
| Vacant | 10.4% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 35.9% |
| Townhome | 0.0% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 64.1% |
Businesses in 91931
12 business establishments with 59 employees (ZIP Codes Business Patterns 2023).
- Construction: 4
EDDM carrier routes
See every USPS carrier route in 91931 with residential and business mailbox counts on the route map. Open the EDDM route map.
Nearby ZIP codes
- 91962 — Pine Valley CDP, CA (3.6 mi)
- 91916 — Descanso CDP, CA (5.9 mi)
- 91948 — Mount Laguna CDP, CA (6.5 mi)
- 91901 — Alpine CDP, CA (8.7 mi)
- 91963 — Potrero CDP, CA (13.1 mi)
- 91906 — Campo CDP, CA (13.8 mi)
- 91935 — Jamul CDP, CA (15.1 mi)
- 91917 (16.9 mi)
Areas that include 91931
- Guatay, CA ZIP codes — 1 ZIP code
- San Diego County ZIP codes — 116 ZIP codes
- California ZIP code data
Mail every home in 91931
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 91931, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 91931 in?
- 91931 is a Guatay, CA mailing address. None of its land lies inside a Census-defined city or community.
- What county is 91931 in?
- 91931 is in San Diego County.
- What is the population of 91931?
- About 494 people (±374), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 481.
- What is the median household income in 91931?
- $63,750 (±$38,725), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 91931?
- EDDM2GO's stored route library does not include 91931 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
- What ZIP codes are near 91931?
- The closest, measured center to center: 91962 (3.6 mi, Pine Valley), 91916 (5.9 mi, Descanso), 91948 (6.5 mi, Mount Laguna), 91901 (8.7 mi, Alpine), 91963 (13.1 mi, Potrero) and 91906 (13.8 mi, Campo).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.