Ione, California Zip Codes
📍 Ione is in Amador County, California with 1 zip code; the most populous is 95640.
Ione is a USPS city name in Amador County, California with a Census population of approximately 12,518 across its ZIP codes. Amador County as a whole has 13 ZIP codes in this directory. Below you'll find every zip code serving Ione with population, income and home value, a map, and the city's affordability profile.
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
All Ione Zip Codes
Ione at a Glance
Ione has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 12,518 residents, the largest being 95640 with 12,518 people.
The median ZIP in Ione has a household income of $90,665 and a home value of $427,000, a price-to-income ratio of 4.7, below the 6.7 California ZIP median. Median rent across these ZIPs is $1,214 a month.
79% of households in the typical Ione ZIP own their home (statewide ZIP median 64%). 15% of adults hold a bachelor's degree, far below the 31% statewide median. The median poverty rate is 8.5%, below the 10.8% statewide ZIP median. Overall density is about 95 residents per square mile across 131 square miles of ZIP land area.
Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 California ZIP Code Affordability Report.
Ione Zip Code Map
Interactive map of Ione, California zip codes. Click any marker for details.