* Data for more counties are available every five years when the Census of Governments is held (1992, 1997, 2002, 2007, 2012, etc.). The increase in data available from small cities in those years typically means that the median value (midpoint of the data) is lower.
Years Available: 2007–2018
Permanent Link: http://data.sagepub.com/sagestats/6241
General Notes: *Median value gives the value for the "average" city for this metric, the 50th percentile of all cities reporting data. **City government includes Municipality and Township type governments. Does not include special district or independent school district data.