Twin Peaks, CA 92391 ZIP Code Profile

Related Place Profiles:
Twin Peaks, CA

Camera Icon Photos of the local Twin Peaks, CA area

ZIP Code 92391: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Twin Peaks, CA 92391

  • ZIP Code Type: PO BOX
  • Businesses Addresses: 46
  • Single Family Addresses: 1
  • Multi-Family Addresses: 0
  • County: San Bernardino County
  • Centroid: Latitude 34.247, Longitude -117.227
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


92391 ZIP Code Map

Search the map for:

Twin Peaks, CA 92391 Data & Demographics (As of July 1, 2017)


Total Population 2,952
Daytime Population: Workers 576
Daytime Population: Residents 1,738
Total Daytime Population (TDP) 2,314
Ratio TDP/Total Population1 0.78
Population in Households 2,936
Population in Familes 2,463
Population in Group Qrtrs 16
Population Density2 1,184
Diversity Index3 62


Median Household Income $52,415
Average Household Income $70,908
Per Capita Income $25,589


Total Housing Units 1,947 (100%)
Owner Occupied HU 680 (34.9%)
Renter Occupied HU 376 (19.3%)
Vacant Housing Units 891 (45.8%)
Median Home Value $301,923
Average Home Value $434,044


Total Households 1,056
Average Household Size 2.78
Family Households 748
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.51% 0.62%
Households 0.43% 0.54%
Families 0.41% 0.53%
Median Household Income   1.73%
Per Capita Income   2.75%

Twin Peaks, CA 92391 - Peer Comparisons by Rank and Percentile

The table below compares 92391 to the other 1,761 ZIP Codes in California by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1230 30th
Population Density # 809 54th
Diversity Index # 1050 40th
Median Household Income # 1091 38th
Per Capita Income # 1119 37th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

California Research Tools

California Census Data Comparison Tool

Compare California Census Data
Highest or Lowest: