Zip Code 45171 — Sardinia, OH

ZIP Code 45171 is associated with Sardinia, OH, in Brown County. The listed population estimate is 5,752; estimated density is 27.5 people per square mile. Among records with population estimates, it ranks #3 of 11 in Brown County and #491 of 1,215 in OH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.014140, -83.796200)

Data MetricLocal Statistic
Postal / Zip Code45171
Primary CitySardinia
State / ProvinceOH
CountyBrown
Total Population5,752
Population Density27.5 people/sq mi
TimezoneAmerica/New_York

How 45171 Compares

MetricZIP 45171Brown County recordsOH records
Population estimate5,75239,292 (sum)11,810,293 (sum)
Population Density27.5 /sq mi----
County population rank#3 of 11----
State population rank#491 of 1,215----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in OH

ZIP CodeCityDistancePopulation estimate
ZIP 45155Mowrystown3.0 mi510
ZIP 45154Mount Orab7.4 mi8,969
ZIP 45697Winchester8.9 mi5,222
ZIP 45168Russellville11.3 mi1,667
ZIP 45121Georgetown11.8 mi9,030

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →