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Demographics
Population
Population Density
The population of ZIP code 91901 in Alpine, California has grown from 16,302 in 2010 to 19,008 in 2022. Population density increased from 165.15 people per square mile in 2010 to 192.56 people per square mile in 2022. The 98.71 square mile area is classified as rural, with population densities between 50 and 500 people per square mile.
The rural lifestyle in ZIP code 91901 is community-oriented, revolving around local schools and small businesses. Residents engage in activities like hobby farming, horse ownership, and outdoor pursuits. The natural environment and larger living spaces of 1 to 5 acres are enjoyed.
Based on the 2022 population and the national average household size of 2.61, the estimated number of housing units is 7,282. The area has seen moderate urban development to accommodate population growth while maintaining its rural character.
As the population of ZIP code 91901 continues growing, the area may transition to a suburban rural classification. This is characterized by clustered housing developments with lot sizes around 1 acre. The shift could provide a mix of rural openness and suburban amenities, appealing to families desiring quieter neighborhoods close to nature but with access to suburban conveniences such as community centers and parks.