Each edition grades its towns against each other only.
A town of 245, laid out in 1858.
Johnson Morrow House is on the National Register of Historic Places. Callao has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
In a town this size, neighbors are the best guide. Ask them anything.
Census counts: 310 in 1870, a peak of 542 in 1920, 251 in 2020. The archive holds 1 old photo or paper going back to 2004 and 2 maps from 1942 on.
1 place on the National Register of Historic Places.
Who provides power, water and the rest in Callao, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
Ordered by what stands out in Callao.
The public schools here belong to the Callao C-8 school district. Its one school is below.
| School | Level | Students | Letter |
|---|---|---|---|
| Callao Elem.Largest public elementary schoolGrades K–8 | Grades K–8 | 35 | C |
NCES · EDFacts
The range runs from 18° on a January night to 87° on a July afternoon, with about 19 inches of snow a winter.
NOAA U.S. Climate Normals, 1991–2020
The mean commuting time for Callao comes to 18 minutes, below both the Missouri town median (22 minutes) and the median of U.S. towns (25 minutes). Among residents in the town, 19% live below the poverty line. The top destinations are Macon (21%), Kirksville (11%) and Marceline (7%). The town’s middle household income comes in at $39,000.
| Callao | Missouri towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 18 minutes | 22 minutes | 25 minutes |
| Below the poverty line | 19% | 14% | 9.6% |
| Median household income | $39,000 | $62,000 | $80,000 |
Census LEHD 2023 · ACS
The share of households in Callao who live in a home they own: 80%. Typical home values rose 4.4% in the year to September 2026.
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
In Callao, the FEMA risk score is 61 of 100. Expected losses in Callao break down as 60% from inland flooding and 16% from tornadoes. Federal disaster aid has reached households in Callao after 4 declared disasters, most recently in 2011.
FEMA disaster declarations and aid · FEMA National Risk Index · OpenFEMA
Nearly a fifth of adults report frequent mental distress in Callao. Among adults in the town, 17% report frequent physical distress and 33% get no exercise outside work.
| Callao | Missouri towns | U.S. towns | |
|---|---|---|---|
| Smoke cigarettes (CDC PLACES) | 20% | 17% | 14% |
| Frequent physical distress (CDC PLACES) | 17% | 15% | 14% |
| Get no exercise (CDC PLACES) | 33% | 30% | 25% |
| Sleep under 7 hours (CDC PLACES) | 40% | 38% | 36% |
| What stands out | Callao | MO |
|---|---|---|
| More adults with COPD | 10.2% | 8% |
| More smokers | 20% | 16% |
| More adults with heart disease | 8.3% | 6.8% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
None within 15 miles of Callao; the nearest are
About 2 of every 100 Callao residents are enrolled in college, against 6 across Missouri.
City in Missouri, United States
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)
Short answers, built from the data on this page.
Callao has fewer than 1,000 residents, too few for fair grades; the figures below are still real.