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USPS city
Trio, SC ZIP codes
1 ZIP code that list Trio as a USPS primary or acceptable city. Not a Census place.
Sum of ZCTA populations for ZIP codes intersecting Trio. Not a Census place total. Methodology
Combined population of ZIP/ZCTAs that list this USPS city as a primary or acceptable name. This is a labeled ZIP-sum, never a Census place ACS population. Methodology
ZIP codes associated with Trio
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 29590 | Salters | Williamsburg County | 3,756 | $45,809 |