BROOKFIELD, a city of Linn county (Mo.), on Federal highway 36 and the Burlington railway, about 13om. N.E. of Kansas City. The population in 193o was 6,428. It ships large quantities of grain, hay, poultry and livestock; has railroad shops and a shoe factory; and is in the "Lafayette" coal-field. The city was founded in 1858 and incorporated in 1872.