Seneca ZIP Codes

List of Zip Codes of Seneca

The following table lists ZIP Codes associated with Seneca, Oregon, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.

About Seneca Oregon Zip Codes

The city of Seneca in Oregon (OR) is served by approximately 1 ZIP Codes. These codes cover residential neighborhoods, business districts, and surrounding localities that use the city name in their mailing address.

Based on ZIP-level population estimates, the combined population covered by these ZIP Codes is around 119 people. Population density can vary significantly from one ZIP Code to another, reflecting the mix of dense urban blocks, commercial corridors, and lower-density residential areas.

The ZIP Codes associated with Seneca fall within county jurisdictions such as Grant. Each county manages local services, land use, and administration for the areas corresponding to its ZIP Codes.

Most ZIP codes for Seneca, Oregon follow the America/Los_Angeles time zone.