Coal of fine quality underlies the entire county, some of the veins running five feet or more in thickness. More than half the coal mined in the state comes from this county. Building stone, cement rock, fire and potter's clay of excellent quality are abundant in several localities and though only partially developed are a source of revenue to the owners of the deposits. Belts of timber averaging about half a mile in width are found along the streams, the principal varieties being oak, walnut, poplar, hickory and cottonwood. Some artificial groves have been planted.
Agriculture is an important industry.
Kafir corn, Irish potatoes and sorghum are also important crops. Pittsburg is one of the greatest railroad centers in eastern Kansas. According to the U. S. census for 1910, the population of Crawford county was 51,178, a gain of 12,369 during the preceding ten years, making it the fourth in the state in population. There are eleven incorporated cities in the county, viz. Other important towns and villages are Beulah, Brazilton, Cato, Chicopee, Croweburg.