ZIP Code 94511
About Bethel Island
Bethel Island is an island in the Sacramento–San Joaquin River Delta of Contra Costa County, California, approximately 10 kilometres (6.2 mi) east of Antioch. The island describes itself as "the heart of the California Delta."
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Area Profile
US Census (ACS 5-year · Gazetteer)
2,144
population
$78,393
median household income
408
people / sq mi
$549,500
median home value
$1,390
median gross rent
54.5
median age
1,072
housing units
900
households
5.3
land area (sq mi)