85731

85731 is a United States ZIP code in southwestern Arizona. It covers portions of the city of Tucson and surrounding unincorporated areas in Pima County, within the Tucson metropolitan area. The area is delineated by the United States Postal Service for mail delivery and may not align perfectly with municipal boundaries.

Geography and climate: Located in the Sonoran Desert, the 85731 area experiences a hot desert climate with very hot summers and mild winters. Precipitation is sparse and concentrated in the late summer monsoon and winter storms.

Demographics and land use: The ZIP code area is predominantly residential, with commercial corridors along major roads. Population and housing data are tracked by the Census within the ZIP's overlap with census tracts.

Transportation and services: The locality is served by Tucson's road network and is accessible via major highways. Public transit is provided by Sun Tran within the greater Tucson area. Emergency services are provided by City of Tucson departments where jurisdiction applies, or by Pima County agencies in unincorporated portions.

Education and amenities: Public schools in the area fall under local school districts; residents have access to libraries, parks, and healthcare facilities in Tucson and surrounding communities.

History: ZIP codes were introduced by the U.S. Postal Service in 1963 to streamline mail delivery. The 85731 designation was assigned during the expansion of ZIP codes in the region and may be revised over time.