Castro County Population

1890–2026

7,247

2026 projection

1.1% since 2020 (decrease)

02K4K6K8K10K12K1900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Castro County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20267,247-480.66%
20257,295-480.65%
20247,343+520.71%
20237,291+60.08%
20227,285-700.95%
20217,355+310.42%
20207,324-1602.14%
20197,484-450.60%
20187,529-1391.81%
20177,668-620.80%

Showing 10 of 28 years.

Castro County Demographics

34.5median age

Median age

Female34.1 yrs
Male34.9 yrs

Adults

5,209
1,376 seniors (65+) · 26% of adults3,833 other adults

Sex

Female 48.9% · 3,592Male 51.1% · 3,752

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 73 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Castro County Income

$56,776median household income

Median household income

$56,776

Half of households earn more, half earn less

Median earnings

$40,265

Typical yearly pay for a worker 25 or older.

Poverty rate

19.2%

About 1 in 5 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Castro County Marital Status

54% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married54%55%53%
Never married28%28%27%
Divorced8%7%9%
Widowed8%7%9%
Separated3%3%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201