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Zip Code 00966 — Guaynabo, PR

ZIP Code 00966 is associated with Guaynabo, PR, in Guaynabo County. The listed population estimate is 18,791; estimated density is 2,879.0 people per square mile. Among records with population estimates, it ranks #3 of 6 in Guaynabo County and #74 of 130 in PR.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (18.397840, -66.113940)

Data MetricLocal Statistic
Postal / Zip Code00966
Primary CityGuaynabo
State / ProvincePR
CountyGuaynabo
Total Population18,791
Population Density2,879.0 people/sq mi
TimezoneAmerica/Puerto_Rico

How 00966 Compares

MetricZIP 00966Guaynabo County recordsPR records
Population estimate18,79194,908 (sum)3,233,341 (sum)
Population Density2,879.0 /sq mi----
County population rank#3 of 6----
State population rank#74 of 130----

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 PR

ZIP CodeCityDistancePopulation estimate
ZIP 00968Guaynabo1.0 mi3,633
ZIP 00934Fort Buchanan1.2 mi38
ZIP 00921San Juan1.8 mi33,119
ZIP 00965Guaynabo2.1 mi5,848
ZIP 00920San Juan2.1 mi15,900

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 →