Zip Code 45365 — Sidney, OH

ZIP Code 45365 is associated with Sidney, OH, in Shelby County. The listed population estimate is 28,965; estimated density is 71.8 people per square mile. Among records with population estimates, it ranks #1 of 11 in Shelby County and #108 of 1,215 in OH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.282800, -84.155820)

Data MetricLocal Statistic
Postal / Zip Code45365
Primary CitySidney
State / ProvinceOH
CountyShelby
Total Population28,965
Population Density71.8 people/sq mi
TimezoneAmerica/New_York

How 45365 Compares

MetricZIP 45365Shelby County recordsOH records
Population estimate28,96545,834 (sum)11,810,293 (sum)
Population Density71.8 /sq mi----
County population rank#1 of 11----
State population rank#108 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 45360Port Jefferson4.7 mi278
ZIP 45353Pemberton6.0 mi242
ZIP 45340Maplewood8.3 mi800
ZIP 45302Anna8.6 mi4,338
ZIP 45356Piqua9.2 mi25,237

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 →