Zip Code 77837 — Calvert, TX
77837 is a ZIP Code associated with Calvert, TX, located within Robertson. 77837 ranks #4 out of 6 ZIP codes in Robertson County by population (and #1461 out of 1,990 in TX). The area supports an estimated population of 1,030 residents across Data Pending housing units, with a population density of 3.4 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (31.007040, -96.677180)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 77837 |
| Primary City | Calvert |
| State / Province | TX |
| County | Robertson |
| Total Population | 1,030 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 3.4 people/sq mi |
| Timezone | America/Chicago |
How 77837 Compares
| Metric | ZIP 77837 | Robertson County | TX State Average |
|---|
| Population | 1,030 | 16,336 (Total) | 30,188,035 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 3.4 /sq mi | -- | -- |
| County Pop Rank | #4 of 6 | -- | -- |
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 →