| ZIP Codes: | 4 ZIP Codes (2 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 787 / 939 |
| Timezone: | GMT -04:00 |
| Local Time: | 2:13:37 PM |
| Population: | 74,421 [See All] |
| FIPS: | 72137 |
| CBSA: | San Juan-Bayamon-Caguas, PR |
| Land Area: | 21 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 18.4377, -66.2355 |
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74,421 residents live across 4 ZIPs covering 21 sq mi, served by 2 distinct USPS-recognized cities.
Population moved from 89,759 to 74,421 from 2014 to 2024 — a -17.1% change. 1 ZIPs gained residents, 2 lost (and 1 held flat).
The county's wealthiest ZIP 00949 (Toa Baja, $34,563 median) and poorest ZIP 00952 (Sabana Seca, $22,288) are 2.3 miles apart — a 1.6× income gap across local geography.
Median home values vary 1.9× across this county — from $80,000 in 00951 (Toa Baja) to $152,300 in 00949 (Toa Baja).
Density varies 2× across the county — from 2,034 people/sq mi in 00952 (Sabana Seca) to 3,951 in 00949 (Toa Baja).
Most of the decade's growth concentrated around Toa Baja — top growth ZIPs averaged +820.9% over the past ten years ( 00951 , 00952 and 00949 ).
Within Puerto Rico, this is the #8 most populous of 78 counties and ranks #20 for median household income .
On the national stage, Toa Baja County is .
Weighted by population, the typical household earns about $33,154 across the county — reflecting what a typical resident sees, not a simple ZIP average.
2 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
Toa Baja County lost 17.1% of residents between 2014 and 2024. ZIPs that shed the largest share: