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  •   State: 
    Will County
      County all: 
    Will | Kendall
      County FIPS: 
    17197 | 17093
    41°35′19″N 88°11′18″W
      Area total: 
    35.24 sq mi (91.3 km²)
      Area land: 
    33.48 sq mi (86.7 km²)
      Area water: 
    1.76 sq mi (4.6 km²)
  •   Latitude: 
      Dman name cbsa: 
    Chicago-Naperville-Elgin, IL-IN-WI
    Eastern Standard Time (EST) UTC-5:00; Eastern Daylight Time (EDT) UTC-4:00
      ZIP codes: 

    Plainfield, Will County, Illinois, United States

  •   Population: 
      Population density: 
    2,398.9 residents per square mile of area (926.2/km²)
      Household income: 
      Unemployment rate: 
  •   Sales taxes: 
      Income taxes: 

Plainfield Township is located in Will County, Illinois. As of the 2010 census, its population was 80,318 and it contained 25,333 housing units. Plainfield Township government serves the residents in the Illinois communities of Plainfield, Joliet, Romeoville and Crest Hill. The township has a total area of 35.24 square miles (91.3 km²), of which 33.48 sq miles (86.7 km²) (or 95.01%) is land and 1.76sq miles (4.6 km²) (or 4.99%) is water. See also Plainfield Public Library District for more information on Plainfield's public library system and services. The Township's boundaries run to the North by 135th Street, to the South by Theodore Street, by Gaylord Road and to the West by County Line Road. It is located on the Illinois River, which runs through the center of the township. It has a population of 80, 318 as of the census of 2010, and it has a land area of 33.4 square miles. It also has a water area of 1,76 square miles, or 95.1 km² (or 5.99 square miles) The township's population is 79,318, and its land area is 33.3 square miles; its water area is 4.6km². It contains a total of 25,000 housing units, and has a housing population of 79,000 (or 80,000 in 2010).


According to the 2010 census, the township has a total area of 35.24 square miles (91.3 km²) Of this, 33.48 square miles of (86.7 km²), (or 95.01%) is land and 1.76 square miles. of (4.6km²) (or 4.99%) is water. The township is part of the Doylestown, Pennsylvania, Metropolitan Statistical Area, which covers an area of 33.4 square miles, or 95.4 km². The population of the township was 2,856 at the 2010 Census. The town's population was 2.7 million at the time of the census, and 2.9 million at age 65 or older. The area has a population of 2,788, or 2.8% of its population. The total area is 35.25 square miles and 4.6 km², of which 3.7 square miles is land, or 4.9% is water, and 3.2 square miles (8.2 km²). The township's population is 1,876, or 3.1% of the town's total population. It has a land area of 34.2 square miles; 4.7 square miles (9.1 km²), or 1.9 square kilometers, is the township's land area. The Township has a water area of 1.6 square mile (3.0 km3), or 0.8 sq  miles (0.9 km3), of which 1.4 square Mile (1.4 sq km) is land.


The U.S. population is growing at a rapid rate, according to a new study. It's the fastest-growing demographic group in the world. The population is expected to grow at a rate of 3.7% over the next decade. The U.N. estimates that the U.K. population will grow by 3.8% by 2050. The rate of growth will be the highest in the United States since the 1970s, the study says. The country's population is projected to grow by 4.5% by 2030. The growth rate is the fastest since the 1990s. The nation's population will reach a record-high of 4.7 million by 2050, the report says. That's up from 3.4% in 2007. The United States is expectedto grow by 2.7 percent by 2050 and 3.5 percent by 2035. The world's population has grown by 1.8 million in the past decade, the United Nations says. This is the largest growth rate in more than any other country in the history of the world, and it's expected to be the fastest growing in the next 10 years. The number of Americans will grow at the fastest rate since the 1960s. It is the highest rate in the developed world since the 1950s, and 1.9% of Americans are now living in urban areas. The global population is at an all-time high. The average age is now 34.7 years old, the highest since 2000.

Air Quality, Water Quality, Superfund Sites & UV Index

The Air Quality index is in Plainfield, Will County, Illinois = 77. These Air Quality index is based on annual reports from the EPA. Higher values are better (100=best). The number of ozone alert days is used as an indicator of air quality, as are the amounts of seven pollutants including particulates, carbon monoxide, sulfur dioxide, lead, and volatile organic chemicals. The Water Quality Index is 36. A measure of the quality of an area’s water supply as rated by the EPA. Higher values are better (100=best). The EPA has a complex method of measuring the watershed quality, using 15 indicators such as pollutants, turbidity, sediments, and toxic discharges. The Superfund Sites Index is 69. Higher is better (100=best). Based upon the number and impact of EPA Superfund pollution sites in the county, including spending on the cleanup efforts. The UV Index in Plainfield = 3.7 and is a measure of an area's exposure to the sun's ultraviolet rays. This is most often a combination of sunny weather, altitude, and latitude. The UV Index has been defined by the WHO ( and is uniform worldwide.


The most recent city population of 44,762 individuals with a median age of 30.8 age the population grows by 67.46% in Plainfield, Will County, Illinois population since 2000 and are distributed over a density of 2,398.9 residents per square mile of area (926.2/km²). There are average 3.15 people per household in the 24,210 households with an average household income of $79,768 a year. The unemployment rate in Alabama is 10.20% of the available work force and has dropped -4.37% over the most recent 12-month period and the projected change in job supply over the next decade based on migration patterns, economic growth, and other factors will increase by 21.06%. The number of physicians in Plainfield per 100,000 population = 98.7.


The annual rainfall in Plainfield = 34.2 inches and the annual snowfall = 23.6 inches. The annual number of days with measurable precipitation (over .01 inch) = 107. The average number of days per year that are predominantly sunny = 189. 86 degrees Fahrenheit is the average daily high temperature for the month of July and 15.7 degrees Fahrenheit is the average daily low temperature for the month of January. The Comfort Index (higher=better) is 43, where higher values mean a more pleasant climate. The Comfort Index measure recognizes that humidity by itself isn't the problem. (Have you noticed nobody ever complains about the weather being 'cold and humid?) It's in the summertime that we notice the humidity the most, when it's hot and muggy. Our Comfort Index uses a combination of afternoon summer temperature and humidity to closely predict the effect that the humidity will have on people.

Median Home Cost

The percentage of housing units in Plainfield, Will County, Illinois which are owned by the occupant = 92.33%. A housing unit is a house, apartment, mobile home, or room occupied as separate living quarters. The average age of homes = 9 years with median home cost = $178,200 and home appreciation of -14.60%. This is the value of the years most recent home sales data. Its important to note that this is not the average (or arithmetic mean). The median home price is the middle value when you arrange all the sales prices of homes from lowest to highest. This is a better indicator than the average, because the median is not changed as much by a few unusually high or low values. The property tax rate of $18.40 shown here is the rate per $1,000 of home value. If for simplification for example the tax rate is $14.00 and the home value is $250,000, the property tax would be $14.00 x ($250,000/1000), or $3500. This is the 'effective' tax rate.


The local school district spends $4,458 per student. There are 18.6 students for each teacher in the school, 1435 students for each Librarian and 994 students for each Counselor. 9.40% of the area’s population over the age of 25 with an Associate Degree or other 2-year college degree, 22.68% with a master’s degree, Ph.D. or other advanced college degree and 6.66% with high school diplomas or high school equivalency degrees (GEDs).

  • Plainfield's population in Will County, Illinois of 1,964 residents in 1900 has increased 22,79-fold to 44,762 residents after 120 years, according to the official 2020 census.

    Approximately 50.14% female residents and 49.86% male residents live in Plainfield, Will County, Illinois.

    As of 2020 in Plainfield, Will County, Illinois are married and the remaining 27.79% are single population.

  • 40 minutes is the average time that residents in Plainfield require for a one-way commute to work. A long commute can have different effects on health. A Gallup poll in the US found that in terms of mental health, long haul commuters are up to 12 percent more likely to experience worry, and ten percent less likely to feel well rested. The Gallup poll also found that of people who commute 61­–90 minutes each day, a whopping one third complained of neck and back pain, compared to less than a quarter of people who only spend ten minutes getting to work.

    85.61% of the working population which commute to work alone in their car, 7.09% of the working population which commutes to work in a carpool, 2.56% of the population that commutes using mass transit, including bus, light rail, subway, and ferry. 3.40% of the population that has their home as their principal place of work.

  • Of the total residential buildings in Plainfield, Will County, Illinois, 92.33% are owner-occupied homes, another 5.30% are rented apartments, and the remaining 2.37% are vacant.

  • The 52.41% of the population in Plainfield, Will County, Illinois who identify themselves as belonging to a religion are distributed among the following most diverse religions.

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