What city is ZIP code 78566?

ZIP code 78566 is in Bayview, TX (Cameron County).

What county is ZIP code 78566 in?

ZIP code 78566 is mostly in Cameron County, Texas.

How many people live in ZIP code 78566?

About 25,110 people live in the 78566 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 78566

Bayview, TX, Cameron County

Population

25,110

Land area

139sq mi

People per sq mi

181

City

Bayview

ZIP 78566 and nearby ZIP codes

Full map

ZIP 78566 at a glance

ZIP 78566 (Bayview) is 56% denser than Texas as a whole.
The median household income is $60,187, 23% below the Texas median of $78,476.
A typical owner-occupied home is valued at $154,300 (46% below Texas) and median rent is $891 a month.

Local data for ZIP 78566

Counts from official public data

Housing and community stats

ZIP 78566, American Community Survey 2020-2024

Full profile

Median household income

$60,187

Poverty rate

29.9%

Median home value

$154,300

Prices +1.5% in a year

Median rent

$891/mo

Homeownership

75.0%

Bachelor's or higher

21.4%

Median age

33.0

Average commute

27.1 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

170

ZIP Business Patterns 2023

Employees

3,498

$138M annual payroll

PPP loans

$12.5M

438 loans

Campaign donations

$20K

3% D, 49% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 78566, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively High

Top: cold wave

Storm events since 1996

851

Countywide, mostly drought

Flood insurance policies

12,201

9.7% of homes, county

July high / Jan low

92° / 52°F

23.3 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 78566, CDC PLACES estimates

All 40 measures

Obesity

40.2%

U.S. 33.3% +6.9 pts

Diabetes

17.0%

U.S. 12.1% +4.9 pts

Smoking

13.1%

U.S. 12.8% about the same

Uninsured (18-64)

35.4%

U.S. 11.1% +24.3 pts

Frequently asked questions

What city is ZIP code 78566?: ZIP code 78566 is in Bayview, TX (Cameron County).
What county is ZIP code 78566 in?: ZIP code 78566 is mostly in Cameron County, Texas.
How many people live in ZIP code 78566?: About 25,110 people live in the 78566 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.