Casa de Oro-Mount Helix ZIP codes, California
No ZIP code is named for Casa de Oro-Mount Helix, CA; addresses there use a neighbouring town's name. 4 ZIP codes cover it: 91977, 92020, 92019 and 91941. Its area codes are 619 and 858.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 4 more
- Population
- 19,765
- County
- San Diego County
- State
- California
NANPA lists no telephone rate centre for Casa de Oro-Mount Helix itself, so these are the area codes of the nearest one, El Cajon (0.0 miles). A town on an area-code boundary can differ from its neighbour.
Casa de Oro-Mount Helix in numbers
About 19,765 people live in Casa de Oro-Mount Helix, in 7,034 households. The median household income is $125,107 a year, 26% above the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $952,400 (30% above the California median), and median gross rent is $1,973 a month. The median age is 43.4; 46.5% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 26 minutes.
| Population | 19,765 |
|---|---|
| Households | 7,034 |
| Median age | 43.4 |
| Median household income | $125,107 |
| Median home value | $952,400 |
| Median gross rent | $1,973 |
| Bachelor's degree or higher | 46.5% |
| Mean commute | 26.0 min |
| Population density | 2,885 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Casa de Oro-Mount Helix CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes covering Casa de Oro-Mount Helix
These ZIP codes cover part of Casa de Oro-Mount Helix but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
91941 | La Mesa , CA | Standard | 33,218 | $115,381 | $928,700 |
91977 | Spring Valley , CA | Standard | 61,064 | $99,657 | $665,600 |
92019 | El Cajon , CA | Standard | 45,351 | $101,973 | $801,400 |
92020 | El Cajon , CA | Standard | 57,842 | $76,032 | $813,100 |
Map of Casa de Oro-Mount Helix ZIP codes
The ZIP codes of Casa de Oro-Mount Helix, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Casa de Oro-Mount Helix
The nearest larger towns are Spring Valley (31,969 people, 2.4 mi), El Cajon (104,449 people, 2.7 mi) and Rancho San Diego (21,272 people, 2.9 mi).
| Town | Population | Distance |
|---|---|---|
| Spring Valley | 31,969 | 2.4 mi |
| El Cajon | 104,449 | 2.7 mi |
| Rancho San Diego | 21,272 | 2.9 mi |
| La Mesa | 60,797 | 3.1 mi |
| Bostonia | 16,765 | 4.1 mi |
| La Presa | 34,962 | 4.1 mi |
| Lemon Grove | 27,686 | 4.4 mi |
| Granite Hills | 3,795 | 4.6 mi |
| Winter Gardens | 22,131 | 5.6 mi |
| Santee | 59,332 | 6.4 mi |
| Crest | 2,775 | 6.4 mi |
| Jamul | 6,574 | 6.5 mi |
| Bonita | 12,652 | 6.6 mi |
| Lakeside | 22,447 | 7.4 mi |
More nearby: every ZIP code in San Diego County · California ZIP codes
Cite this page
zipcodes.pro. “Casa de Oro-Mount Helix, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/casa-de-oro-mount-helix
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