City Population And Economic Context
Grand Detour, IL
Grand Detour, IL city profile with direct Population Pulse only when verified, plus named parent-county economic context.
/il/grand-detourUpdated Sep 6, 2026
Overview
Grand Detour, IL city profile with direct Population Pulse only when verified, plus named parent-county economic context.
Current Population And County Economic Pulse
Direct city population values appear only when the Census place match is verified. Jobs and earnings use named parent-county context.
County Population Context
Parent-county context2025 population estimate
Ogle County: 51,399
One-year change +0.2%
Five-year change -0.7%
Ogle County data is shown as context; it is not claimed as a city estimate.
View Ogle County profile →County Jobs Context
Parent-county contextQ1 2026 average covered employment
Ogle County: 14,024
Q1 2025 -1.4%
2025 annual context 14,427
Ogle County data is shown as context; it is not claimed as a city estimate.
View Ogle County profile →