Callao is a magnificent city placed in the United States. That city is, obviously, from the picturesque Macon county, in a well-known MO state. At 820(ft), in the USA measurement system, the aforementioned city is ASL. Naturally, in the European measurement system the elevation is 250meters. The coordinates are like that: 39,7608647 of latitude and -92,6232452 of longitude. In the GNIS, the city is registered under the figure of 715203.
In the year 2010, the population was around 292.