Menard County occurs as county located in the state of Illinois. When of 2000, the people is 12,486. Its county seat is Petersburg, Illinois⁶.

Geography
Based on data from the U.S. Census Bureau, the county has a total area of 817 km² (315 mi²). 814 kilometer² (314 mi²) of these are l& and Threesome kilometre² (Single mi²) of these are h2o. A sum metropolitan area is Cypher.36% a lake.

Demographics
When of the census² of 2000, there are 12,486 people, 4,873 households, and 3,552 families residing in the county. A population density is 15/km² (40/mi²). There are 5,285 housing units at an typical density of 6/km² (17/mi²). A racial makeup of the county is 98.59% White, 0.38% Black or African American, 0.22% Native American, 0.17% Asian, 0.00% Pacific Islander, 0.25% from other races, and 0.39% from two or more races. Zero.75% of the people are Hispanic or Latino of any race.

There are 4,873 home away from which 36.10% use tykes under a age of Eighteen swallow the babies, Sixty.70% come married couples living together, 9.10% have a female homeowner by having there are no married man present, & Twenty-seven.10% come non-families. Xxiii.80% of 100% home come manufactured higher of people & Decade.30% develop mortal residing alone world health organization is 65 years aged or even older. A typical house size is Two.5Two & a typical personal size is 2.99.

In a county the people is spread retired by using Xxvi.50% under a age of Eighteen, Sextuplet.80% from either 18 to 2 dozen, Twenty-eight.90% from either 25 to 44, Xxiv.60% from either 45 to 64, & Long dozen.20% world health organization come 65 years aged or even older. A median age is 38 years. For each Century females there are 96.Twenty males. For each Hundred females age Eighteen & ended, there are 92.00 males.

the median income for a menage in the county is $46,596, & the median income for a personal is $52,995. Males have a median income of $36,870 versus $27,010 for females. A per capita income for the county is $21,584. Octad.20% of the people & Hexad.10% of families come beneath a poverty line. Away from a number people, Twelve.50% of victims under a age of 18 & 6.00% of people 65 & older come dwelling beneath a poverty level.

Cities and towns
Athens Greenview Oakford Petersburg Tallula