Demographics & People — Niantic, Illinois
Population Overview
| Population (Census) | 734 |
|---|
| Estimated 2026 | ~500 |
|---|
| Median Age | 33.8 |
|---|
| Total Households | 227 |
|---|
| Family Households | 127 |
|---|
| Average Household Size | 3.23 |
|---|
| Diversity Index | 0.1812 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 598 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 67 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Other groups | 227 |
| Unclassified or not reported | 179 |
| English | 148 |
| German | 112 |
| American | 79 |
| Irish | 70 |
| Hispanic: Mexican | 69 |
| Hispanic: Hispanic or Latino | 69 |
| Welsh | 32 |
| Scottish | 16 |
Language
| English Only | 568 |
|---|
| Spanish | 38 |
|---|
| Population 5+ | 606 |
|---|
Veterans
| Veterans | 65 |
|---|
| Population 18+ | 462 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Niantic, Illinois.
