Population
In 2007, the estimated population of Sheridan County was 27,998. It is estimated that the population in 2008 will be 28,310 and by 2010, it is anticipated the county will reach 28,750.
Population & Projections
| Sheridan (City) | Entire County | |
| 2006 | 16,510 | 27,720 |
| 2008 | 16,861 | 28,310 |
| 2010 | 17,124 | 28,750 |
The current population is 48.26% male and 51.74% female.
Median Age:
In 2006 the median age of the population was 41.8 up from 40.0 in 2003.
Households:
In 2006 there were an estimated 12,034 households in Sheridan. The 2000 Census revealed household counts of 11,167, up from 9,427 in 1990, representing a change of 18.5%. It is estimated the number of households in Sheridan in 2010 will be 12,556, representing a change of 12.4% from 2000.
Source: Wyoming Economic Analysis Division
