Zip Code 77566 — Lake Jackson, TX
77566 is a ZIP Code associated with Lake Jackson, TX, located within Brazoria. 77566 ranks #6 out of 16 ZIP codes in Brazoria County by population (and #379 out of 1,990 in TX). The area supports an estimated population of 30,246 residents across Data Pending housing units, with a population density of 493.3 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (29.049710, -95.475110)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 77566 |
| Primary City | Lake Jackson |
| State / Province | TX |
| County | Brazoria |
| Total Population | 30,246 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 493.3 people/sq mi |
| Timezone | America/Chicago |
How 77566 Compares
| Metric | ZIP 77566 | Brazoria County | TX State Average |
|---|
| Population | 30,246 | 411,229 (Total) | 30,188,035 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 493.3 /sq mi | -- | -- |
| County Pop Rank | #6 of 16 | -- | -- |
Nearby ZIP Codes
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 →