City Population And Economic Context
Cortland, IL
Cortland, IL city profile with direct Population Pulse only when verified, plus named parent-county economic context.
/il/cortlandUpdated Sep 6, 2026
Overview
Cortland, 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.
Population
Direct source match2025 population estimate
4,676
One-year change +2.4%
Five-year change +6.4%
Published from the active current-data Pulse release. This does not change the annual Combined Score.
County Jobs Context
Parent-county contextQ1 2026 average covered employment
DeKalb County: 35,827
Q1 2025 +0.0%
2025 annual context 36,506
DeKalb County data is shown as context; it is not claimed as a city estimate.
View DeKalb County profile →