ZIP Code 77456

Zip Code: 77456
Type: POBox
Official USPS city name: Markham
Official USPS State Code: TX
Official State Name: Texas
ZCTA: TRUE
Population: 1384.0
Density: 10.2
Primary Official County Code: 48321
Primary Official County Name: Matagorda
Official County Name: Matagorda
Official County Code: 48321
Imprecise: FALSE
Military: FALSE
Timezone: America/Chicago (02:32 AM Thursday, July 10 2025-07-10 (GMT -0500))
Geo Point: 29.00035, -96.09033