| ZIP Codes: | 7 ZIP Codes (6 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 787 / 939 |
| Timezone: | GMT -04:00 |
| Local Time: | 2:13:35 PM |
| Population: | 94,908 [See All] |
| FIPS: | 72061 |
| CBSA: | San Juan-Bayamon-Caguas, PR |
| Land Area: | 19 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 18.3878, -66.1155 |
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94,908 residents live across 7 ZIPs covering 19 sq mi, served by 2 distinct USPS-recognized cities.
Population moved from 101,210 to 94,908 from 2014 to 2024 — a -6.2% change. 2 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 00969 (Guaynabo, $61,101 median) and poorest ZIP 00965 (Guaynabo, $19,136) are 5.7 miles apart — a 3.2× income gap across local geography.
Median home values vary 2.7× across this county — from $110,100 in 00965 (Guaynabo) to $300,900 in 00966 (Guaynabo).
Density varies 4× across the county — from 3,190 people/sq mi in 00968 (Guaynabo) to 13,387 in 00971 (Guaynabo).
Most of the decade's growth concentrated around Guaynabo — top growth ZIPs averaged +6.6% over the past ten years ( 00966 , 00968 and 00969 ).
Within Puerto Rico, this is the #6 most populous of 78 counties and ranks #1 for median household income .
On the national stage, Guaynabo County is .
Weighted by population, the typical household earns about $50,141 across the county — reflecting what a typical resident sees, not a simple ZIP average.
6 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 3.2× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
Guaynabo County lost 6.2% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 00969 | Guaynabo | Standard | 42,231 | $61,101 | 11.4 | -0.2% |
| 00971 | Guaynabo | Standard | 24,367 | $29,526 | 1.8 | -19.7% |
| 00966 | Guaynabo | Standard | 18,791 | $60,203 | 2.4 | 19.0% |
| 00965 | Guaynabo | Standard | 5,848 | $19,136 | 1.3 | -34.9% |
| 00968 | Guaynabo | Standard | 3,633 | $58,869 | 1.1 | 1.1% |
| 00934 | Fort Buchanan | Standard | 38 | — | 1.2 | -79.8% |
| 00970 | Guaynabo | PO Box | — | — | 0.0 | — |