| Official Name: | Tamalco Township |
| Settlement Type: | Township |
| Image Map1: | Map of Illinois highlighting Bond County.svg |
| Mapsize1: | 150px |
| Map Caption1: | Bond County's location in Illinois |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Bond |
| Established Title: | Settlement |
| Established Date: | November 6, 1888 |
| Area Total Sq Mi: | 38.11 |
| Area Land Sq Mi: | 37.17 |
| Area Water Sq Mi: | 0.94 |
| Area Water Percent: | 2.47 |
| Population As Of: | 2020 |
| Population Total: | 522 |
| Population Density Sq Mi: | auto |
| Elevation M: | 147 |
| Elevation Ft: | 482 |
| Coordinates: | 38.7806°N -89.3131°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 62246, 62253, 62284 |
| Blank Name: | FIPS code |
| Blank Info: | 17-005-74418 |
| Unit Pref: | Imperial |
Tamalco Township is one of nine townships in Bond County, Illinois, USA. As of the 2020 census, its population was 522 and it contained 260 housing units.[1]
According to the 2010 census, the township has a total area of, of which (or 97.53%) is land and (or 2.47%) is water.[2]
The township contains these four cemeteries: Duncan, McKendree, Payne and Saint Peters.
As of the 2020 census there were 522 people, 310 households, and 230 families residing in the township. The population density was 13.69PD/sqmi. There were 260 housing units at an average density of 6.82/sqmi. The racial makeup of the township was 95.79% White, 0.00% African American, 0.19% Native American, 0.38% Asian, 0.00% Pacific Islander, 0.19% from other races, and 3.45% from two or more races. Hispanic or Latino of any race were 1.15% of the population.
There were 310 households, out of which 38.70% had children under the age of 18 living with them, 60.97% were married couples living together, 12.26% had a female householder with no spouse present, and 25.81% were non-families. 23.90% of all households were made up of individuals, and 15.20% had someone living alone who was 65 years of age or older. The average household size was 2.03 and the average family size was 2.32.
The township's age distribution consisted of 17.6% under the age of 18, 2.9% from 18 to 24, 11.7% from 25 to 44, 39.8% from 45 to 64, and 28.0% who were 65 years of age or older. The median age was 54.0 years. For every 100 females, there were 78.2 males. For every 100 females age 18 and over, there were 74.4 males.
The median income for a household in the township was $44,000, and the median income for a family was $42,278. Males had a median income of $45,100 versus $19,195 for females. The per capita income for the township was $22,945. About 2.2% of families and 11.1% of the population were below the poverty line, including 32.4% of those under age 18 and 3.4% of those age 65 or over.