Pike County, Illinois

Pike County population, land area and income

Pike County had 14,258 residents in the Census Vintage 2024 estimate, on 831.4 square miles of land. It ranks 74th of 102 in Illinois by population and 14th by land area. That works out to 17.2 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Illinois has 24,447 residents; Pike County is somewhat smaller.

Its SAIPE 2023 median household income of $58,733 is below the national county median among 3,143 counties with an estimate.

How Pike County's population changed since 2020

Pike County lost 379 residents between the July 2020 and July 2024 estimates, a drop of 2.6%. That ranks 75th of 102 in Illinois for growth. The median Illinois county changed by -1.7%, and the state as a whole by -0.7%.

Since the April 2020 estimates base, Pike County recorded 680 births and 1,011 deaths, a natural change of -331. Net international migration added +60 and net domestic migration, people moving to or from other US counties, came to -196. The largest single component was natural change, which removed 331 people.

Where Pike County is

The Census internal point of Pike County is at 39.625100, -90.889000. It sits in UTM zone 15N. The map shades Illinois's 102 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Pike County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Pike County

3 incorporated places of 1,000+ people have residents in Pike County, 6,352 people together, or 45% of the county. Each figure counts only the part of the town inside Pike County; towns marked "part" extend into another county. The largest is Pittsfield with 4,048.

Counties bordering Pike County

The Census 2024 county adjacency file lists 9 neighbors for Pike County, including 3 across a state line. The most populous is Adams County, IL, with 64,109 residents. Distances run between Census internal points in a straight line.

• Adams County

  64,109 people

  30 mi NNW

• Morgan County

  32,618 people

  37 mi E

• MO

  Marion County, MO

  28,425 people

  42 mi WNW

• MO

  Pike County, MO

  17,961 people

  25 mi SW

• Greene County

  11,417 people

  33 mi SE

• MO

  Ralls County, MO

  10,499 people

  34 mi W

• Brown County

  6,307 people

  24 mi NNE

• Scott County

  4,880 people

  22 mi E

• Calhoun County

  4,224 people

  34 mi SSE

Distance to Springfield and the nearest big city

Springfield is 66.7 miles E of Pike County's internal point in a straight line. The nearest place of 100,000 or more is Springfield, IL (population 112,949), 67.1 miles away. The nearest place of 10,000 or more is Hannibal, MO (population 16,809), 27.5 miles away.

Pike County FIPS code

The FIPS code of Pike County is 17149: state code 17 for Illinois plus county code 149. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $58,733.