RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4621 locations in the last 30 days (4792 reports) · Last sighting 10 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/22/2026957 N WINCHESTER AVEWest Town36Completed1 dayInternetCity 311
10/16/2025957 N SPRINGFIELD AVEHumboldt Park37Completed6 daysPhone CallCity 311
3/1/2026957 N CENTRAL PARK AVEHumboldt Park27Completed4 daysMobile DeviceCity 311
9/15/2026957 N CENTRAL PARK AVEHumboldt Park27Open—Mobile DeviceCity 311
5/9/2026957 N CENTRAL PARK AVEHumboldt Park27Completed3 daysMobile DeviceCity 311
6/20/2026957 N ASHLAND AVEWest Town1Completed4 daysPhone CallCity 311
9/17/2026957 N ASHLAND AVEWest Town1Open—InternetCity 311
7/29/2025957 N ASHLAND AVEWest Town1Completed8 daysInternetCity 311
5/13/2026957 N ASHLAND AVEWest Town1Completed6 daysInternetCity 311
9/24/2025956 W MONTANA STLincoln Park43Completed7 daysAlderman's OfficeCity 311
9/24/2025956 W MONTANA STLincoln Park43Completed7 daysAlderman's OfficeCity 311
12/4/2025956 W 114TH PLMorgan Park21Completed1 dayPhone CallCity 311
1/27/2026956 N WINCHESTER AVEWest Town36Completed1 dayMobile DeviceCity 311
2/2/2026956 N WINCHESTER AVEWest Town36Completed1 dayInternetCity 311
1/26/2026956 N WINCHESTER AVEWest Town36Completed2 daysInternetCity 311
8/6/2025956 N WINCHESTER AVEWest Town36Completed15 daysInternetCity 311
8/1/2025956 N RIDGEWAY AVEHumboldt Park27Completed11 daysMobile DeviceCity 311
4/30/2026956 N DRAKE AVEHumboldt Park27Completed1 dayPhone CallCity 311
7/29/2025956 N DRAKE AVEHumboldt Park27Completed7 daysMobile DeviceCity 311
7/22/2026956 N DRAKE AVEHumboldt Park27Completed9 daysPhone CallCity 311
10/24/2025956 N DRAKE AVEHumboldt Park27Completed5 daysPhone CallCity 311
9/10/20269561 S GREEN STWashington Heights21Completed8 daysPhone CallCity 311
9/9/20269560 S GREEN STWashington Heights21Completed14 daysPhone CallCity 311
10/14/2025955 N WINCHESTER AVEWest Town36Completed3 daysInternetCity 311
10/10/2025955 N LONG AVEAustin37Completed5 daysAlderman's OfficeCity 311
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