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Callao

A city of 251 people in Missouri
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About Callao

City in Missouri, United States
251Population
0.5 sq miArea
820 ftElevation

Callao ( kal-EYE-oh) is a city in Macon County, Missouri, United States. The population was 251 at the 2020 census, down from 292 in 2010.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Town numbers

ZIP code63534
Living in Callao

Housing in Callao

$234K▲ 5.7% in a year Typical home value · Zillow

The typical Callao home is worth about $234,000, up 5.7% in a year, 13% below the Missouri typical home.

Zillow Home Value Index · Redfin Data CenterHousing market →

Work & commute in Callao

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Most working residents leave Callao for work: only 0% work in town. The top destinations are Macon (21%), Kirksville (11%) and Marceline (7%). Half commute less than 25 miles.

Macon
21%
Kirksville
11%
Marceline
7%
Moberly
7%
Census LEHD 2023 · ACSWork & commute in Callao →

Health in Callao

Compared with Missouri

6worse than MO

of 32 measures CDC estimates. The other 26 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Macon County Samaritan Memorial HospitalMacon · 8.3 mi · ER · rural critical access
Macon Family HealthMacon · 8.5 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Callao · CMS · HRSAHealth in Callao →

Natural hazards in Callao

61
High

Expected storm and flood damage is higher than in 61% of U.S. communities.

🌊 Inland flooding🌪️ Tornadoes🌵 Drought
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Callao →

Climate in Callao

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Callao has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 18°, and about 19 inches of snow falls in a normal winter.

39° / 21°Winter
63° / 43°Spring
85° / 64°Summer
66° / 44°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Callao →

Schools in Callao

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C

School Grade C

The public schools Callao’s kids attend trail 69% of Missouri’s districts on state tests. Among towns with similar incomes, they sit near the middle.

DistrictCALLAO C-8Schools1

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results, graded within MO. Ratings are from neighbors.

Libraries near Callao

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Nearest: Macon Public LibraryMacon · 8.3 miles · 44 hrs a week

Famous people from Callao

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How things work in Callao

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The porch light’s on

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01