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Zip Code 12138 — Petersburg, NY

12138 is a ZIP Code associated with Petersburg, NY, located within Rensselaer. 12138 ranks #12 out of 26 ZIP codes in Rensselaer County by population (and #926 out of 1,826 in NY). The area supports an estimated population of 2,695 residents across Data Pending housing units, with a population density of 11.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.737350, -73.371280)

Data MetricLocal Statistic
Postal / Zip Code12138
Primary CityPetersburg
State / ProvinceNY
CountyRensselaer
Total Population2,695
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density11.6 people/sq mi
TimezoneAmerica/New_York

How 12138 Compares

MetricZIP 12138Rensselaer CountyNY State Average
Population2,695158,934 (Total)19,771,902 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density11.6 /sq mi----
County Pop Rank#12 of 26----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 12082Grafton4.4 mi2N/A
Zip 12022Berlin5.2 mi1,120N/A
Zip 12052Cropseyville5.6 mi1,915N/A
Zip 12040Cherry Plain7.4 mi27N/A
Zip 12153Sand Lake8.5 mi669N/A

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 →