Pulaski County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 6,161. Its county seat is Mound City. It is located along the Ohio River in the southwestern portion of the state, known locally as "Little Egypt".


Pulaski County was formed on March 3, 1843, out of parts of Alexander and Johnson counties. It was named in honor of Kazimierz Pułaski who was killed at the Siege of Savannah in the Revolutionary War. File:Pulaski County Illinois 1843.png|Pulaski County at the time of its creation in 1843


According to the U.S. Census Bureau, the county has a total area of , of which is land and (2.0%) is water. It is the third-smallest county in Illinois by area.

Climate and weather

In recent years, average temperatures in the county seat of Mound City have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1985 and a record high of was recorded in June 1954. Average monthly precipitation ranged from in September to in May.

Major highways

* Interstate 57, which has been listed as a speed trap. * U.S. Highway 51 * Illinois Route 37 * 20px Illinois Route 169

Adjacent counties

* Union County (north) * Johnson County (northeast) * Massac County (east) * Ballard County, Kentucky (southeast) * Alexander County (west)

National protected area

* Cypress Creek National Wildlife Refuge (part)


As of the 2010 census, there were 6,161 people, 2,642 households, and 1,658 families living in the county. The population density was . There were 3,155 housing units at an average density of . The racial makeup of the county was 64.4% white, 32.4% black or African American, 0.4% American Indian, 0.2% Asian, 0.7% from other races, and 1.9% from two or more races. Those of Hispanic or Latino origin made up 1.6% of the population. In terms of ancestry, 15.1% were German, 6.8% were Irish, 6.6% were English, and 6.6% were American. Of the 2,642 households, 27.3% had children under the age of 18 living with them, 43.6% were married couples living together, 14.3% had a female householder with no husband present, 37.2% were non-families, and 33.4% of all households were made up of individuals. The average household size was 2.32 and the average family size was 2.96. The median age was 43.2 years. The median income for a household in the county was $31,173 and the median income for a family was $39,699. Males had a median income of $36,915 versus $29,007 for females. The per capita income for the county was $18,444. About 16.7% of families and 22.7% of the population were below the poverty line, including 32.0% of those under age 18 and 18.0% of those age 65 or over.



* Mound City * Mounds


* Karnak * New Grand Chain (usually referred to as "Grand Chain") * Olmsted * Pulaski * Ullin

Unincorporated communities

* America * Levings * North Mounds * Perks * Pryortown * Spencer Heights * Villa Ridge * Wetaug


Pulaski County was often a swing county at the presidential level, but has shifted toward the Republican Party in the Donald Trump era and amid rapid depopulation in the county. Trump won 64.8% of the vote in 2020, the highest share for a Republican in the county since 1928. This trend in Pulaski County has begun to affect down-ballot races as well. In the 2020 Senate election, longtime Democratic Senator Dick Durbin lost the county for the first time in his career, after winning it in his four prior elections.

See also

* National Register of Historic Places listings in Pulaski County



* {{Coord|37.23|-89.13|display=title|type:adm2nd_region:US-IL_source:UScensus1990 Category:1843 establishments in Illinois Category:Illinois counties Category:Illinois counties on the Ohio River Category:Southern Illinois Category:Populated places established in 1843