| Mazon | |
| Settlement Type: | Village |
| Image Map1: | Illinois in United States (US48).svg |
| Map Caption1: | Location of Illinois in the United States |
| Coordinates: | 41.2417°N -88.4231°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Grundy |
| Subdivision Type3: | Township |
| Established Title: | Founded |
| Leader Title: | Mayor |
| Leader Name: | Jeffrey A. Marques (April 2021)[1] |
| Leader Title1: | Village president |
| Unit Pref: | Imperial |
| Area Footnotes: | [2] |
| Area Total Km2: | 1.58 |
| Area Total Sq Mi: | 0.61 |
| Area Land Km2: | 1.56 |
| Area Land Sq Mi: | 0.60 |
| Area Water Km2: | 0.02 |
| Area Water Sq Mi: | 0.01 |
| Elevation Ft: | 587 |
| Population As Of: | 2020 |
| Population Total: | 979 |
| Population Density Km2: | 628.06 |
| Population Density Sq Mi: | 1626.25 |
| Timezone1: | CST |
| Utc Offset1: | -6 |
| Timezone1 Dst: | CDT |
| Utc Offset1 Dst: | -5 |
| Postal Code Type: | ZIP code |
| Postal Code: | 60444 |
| Area Codes: | 815 and 779 |
| Blank Name: | FIPS code |
| Blank Info: | 17-47787 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2399282 |
| Blank2 Name Sec2: | Wikimedia Commons |
| Blank2 Info Sec2: | Mazon, Illinois |
Mazon (məˈzɒn/)[3] is a village in Mazon Township, Grundy County, Illinois, United States. The name derives from the Potawatomi word for "nettles"[4] (mzan).[5] The population was 979 at the 2020 census.[6] Illinois' State Fossil, the unique and bizarre Tully Monster was first found in nearby Mazon Creek.[7] Mazon was formerly served by the Santa Fe railway at the Mazon Depot. It was established in 1876.
According to the 2021 census gazetteer files, Mazon has a total area of 0.61sqmi, of which 0.6sqmi (or 99.01%) is land and 0.01sqmi (or 0.99%) is water.[8]
As of the 2020 census there were 979 people, 477 households, and 332 families residing in the village. The population density was 1610.2PD/sqmi. There were 401 housing units at an average density of 659.54/sqmi. The racial makeup of the village was 92.54% White, 0.31% African American, 0.10% Native American, 0.10% Asian, 0.00% Pacific Islander, 1.53% from other races, and 5.41% from two or more races. Hispanic or Latino of any race were 5.21% of the population.
There were 477 households, out of which 26.8% had children under the age of 18 living with them, 58.70% were married couples living together, 2.31% had a female householder with no husband present, and 30.40% were non-families. 26.21% of all households were made up of individuals, and 13.42% had someone living alone who was 65 years of age or older. The average household size was 3.12 and the average family size was 2.56.
The village's age distribution consisted of 24.8% under the age of 18, 9.9% from 18 to 24, 26.3% from 25 to 44, 23.9% from 45 to 64, and 15.2% who were 65 years of age or older. The median age was 36.6 years. For every 100 females, there were 107.1 males. For every 100 females age 18 and over, there were 106.1 males.
The median income for a household in the village was $60,966, and the median income for a family was $73,875. Males had a median income of $60,685 versus $33,906 for females. The per capita income for the village was $32,776. About 2.4% of families and 4.7% of the population were below the poverty line, including 5.1% of those under age 18 and 3.2% of those age 65 or over.