Twin Peaks, CA · standard
ZIP Code 92391
San Bernardino County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 2,534
- 419/sq mi High-density area
- $81,789
- Median income Near-median income area
- $340,500
- Median home value Above-median home value
- 16.8%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Twin Peaks pairs an above-median household income with above-median home values, in a low-density, homeowner-dominated area.
- Top 36%
- household income, US ZIPs
- Top 28%
- home value, US ZIPs
- 419
- people per sq mi
- 75%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 92391 against every reporting US ZIP.
ZIP code 92391 covers 6.1 square miles in Twin Peaks, San Bernardino County, California (a standard USPS delivery area), with a modest 2,534 residents on file, a density of 419 people per square mile, in the Los Angeles time zone.
ZIP 92391 lands in the middle-income range, with a median household income of $81,789 (20% below the average California ZIP), while per-capita income is $30,629. The poverty rate is 13.9%, with unemployment at 2.4%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $340,500 (56% below the average California ZIP), and median rent is $2,589; owner occupancy is 74.5%.
Educational attainment sits below the national norm: 16.8% of adults hold a bachelor's degree or higher, the median age is 34.6, and the average commute is -. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in San Bernardino County, so 92391 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 92391
Top 5 sectors by establishment count in Twin Peaks, CA
Which industries have the most business establishments in ZIP 92391.
- Construction
Construction
17 establishments
- Other services (except public administration)
Other services (except public administration)
8 establishments
- Administrative and support and waste management and remediation services 5
Administrative and support and waste management and remediation services
5 establishments
- Manufacturing 3
Manufacturing
3 establishments
- Retail trade 3
Retail trade
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 92391, Twin Peaks, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
2,534
Population
6.1
Area (sq mi)
419
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 92391?
34.6
Median Age
53.7%
Male
46.3%
Female
15.8%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$81,789
Median Household Income
-20% vs state ZIP avg
$30,629
Per Capita Income
13.9%
Poverty Rate
2.4%
Unemployment Rate
How ZIP 92391 ranks among California ZIPs
Twin Peaks, CA household income vs. every California ZIP code
Median household income among 1,583 reporting California ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$81,789 38th percentile higher than 38% of 1,583 California ZIPs
Each bar is a $20K-wide band; taller bars hold more California ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,622housing units
1,622
Total Housing Units
948
Occupied Units
674
Vacant Units
2.33
Avg Household Size
Occupancy Type
$340,500
Median Home Value
-56% vs state ZIP avg
$2,589
Median Rent
1968
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+0.4%
YoY Change (2024)
362
HPI Index (2000 = 100)
+262%
Total Change Since 2000
Home values in ZIP 92391 have increased 0.4% over the past year (2024). Since 2000, this ZIP has seen +262% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +12.6% | 262 |
| 2021 | +17.2% | 307 |
| 2022 | +18.0% | 362 |
| 2023 | -0.7% | 360 |
| 2024 | +0.4% | 362 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 51 business establishments in ZIP 92391, employing approximately 171 people with a combined annual payroll of $10,061,000.
51
Businesses
171
Employees
$10.1M
Annual Payroll
5
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 17 | 33.3% |
| Other services (except public administration) | 8 | 15.7% |
| Administrative and support and waste management and remediation services | 5 | 9.8% |
| Manufacturing | 3 | 5.9% |
| Retail trade | 3 | 5.9% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 92391 vs 92378 →
ZIP 92391 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 92404
San Bernardino (92404)
58,271 residents
- 92346
Highland (92346)
54,923 residents
- 92405
San Bernardino (92405)
28,873 residents
- 92325 9,391
Crestline (92325)
9,391 residents
- 92352 8,004
Lake Arrowhead (92352)
8,004 residents
- 92382 5,268
Running Springs (92382)
5,268 residents
- 92391 2,534
Twin Peaks (92391)
2,534 residents
- 92321 1,522
Cedar Glen (92321)
1,522 residents
- 92322 1,257
Cedarpines Park (92322)
1,257 residents
What this shows Among its immediate neighbors, ZIP 92391 ranks #7 by population - useful context the national average alone can't give.
ZIP 92391 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 92322
Cedarpines Park (92322)
$149,119 median income
- 92321
Cedar Glen (92321)
$123,688 median income
- 92352
Lake Arrowhead (92352)
$105,753 median income
- 92378
Rimforest (92378)
$105,294 median income
- 92346
Highland (92346)
$85,163 median income
- 92391
Twin Peaks (92391)
$81,789 median income
- 92382
Running Springs (92382)
$81,493 median income
- 92325
Crestline (92325)
$70,563 median income
- 92405
San Bernardino (92405)
$66,964 median income
What this shows By household income, ZIP 92391 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 92378 | Rimforest, CA | 183 | 1.0 mi |
| 92325 | Crestline, CA | 9,391 | 2.7 mi |
| 92352 | Lake Arrowhead, CA | 8,004 | 2.5 mi |
| 92385 | Skyforest, CA | 313 | 2.9 mi |
| 92404 | San Bernardino, CA | 58,271 | 4.2 mi |
| 92321 | Cedar Glen, CA | 1,522 | 4.8 mi |
| 92322 | Cedarpines Park, CA | 1,257 | 5.4 mi |
| 92382 | Running Springs, CA | 5,268 | 7.0 mi |
| 92405 | San Bernardino, CA | 28,873 | 7.5 mi |
| 92346 | Highland, CA | 54,923 | 8.5 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 92391, both outside CA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (2,534 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in San Bernardino County
Related Areas
Frequently Asked Questions
What county is ZIP code 92391 in?
ZIP code 92391 (Twin Peaks) is located in San Bernardino County, California. San Bernardino County contains multiple ZIP codes, see the full list at /counties/san-bernardino-ca.
What is the population of ZIP code 92391?
ZIP code 92391 in Twin Peaks, CA has a population of 2,534 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 92391?
The median household income in ZIP 92391 is $81,789, which is 7% above the national average of $76,288.
What is the average home value in ZIP 92391?
The median home value in ZIP 92391 is $340,500, which is 22% above the national average of $278,155.
What is the demographic makeup of ZIP 92391?
The largest racial group in ZIP 92391 is White at 43.5%. Hispanic or Latino residents make up 39.1% of the population.
How many businesses are in ZIP code 92391?
ZIP code 92391 has 51 business establishments employing approximately 171 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 92391?
The top industries by establishment count in ZIP 92391 are: Construction (17), Other services (except public administration) (8), Administrative and support and waste management and remediation services (5). There are 5 industry sectors represented in total.
How have home values changed in ZIP code 92391?
According to the FHFA House Price Index, home values in ZIP 92391 increased by 0.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 262%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 92391?
In ZIP code 92391, 40.3% of residents aged 25+ have a high school diploma or higher, and 16.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 92391?
In ZIP code 92391, approximately 74.5% of occupied housing units are owner-occupied and 25.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 92391?
The poverty rate in ZIP code 92391 is 13.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 92391's numbers, next.
- See how ZIP 92391 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Twin Peaks, CA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.