RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4524 locations in the last 30 days (4693 reports) · Last sighting 19 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
9/1/20262849 W MCLEAN AVELogan Square1Completed14 daysPhone CallCity 311
1/17/20261030 N WOOD STWest Town1Completed3 daysInternetCity 311
10/13/20252421 W CHARLESTON STLogan Square1Completed7 daysInternetCity 311
2/16/20261055 N HERMITAGE AVEWest Town1Completed1 dayMobile DeviceCity 311
6/8/20262531 N CALIFORNIA AVELogan Square1Completed3 daysMobile DeviceCity 311
10/14/20252143 N CAMPBELL AVELogan Square1Completed8 daysPhone CallCity 311
6/4/20262544 W MEDILL AVELogan Square1Completed5 daysInternetCity 311
2/8/20261522 W HURON STWest Town1Completed1 dayMobile DeviceCity 311
2/9/2026825 N MARSHFIELD AVEWest Town1Completed1 dayInternetCity 311
1/23/20261536 N CAMPBELLWest Town1Completed0 daysSalesforce Mobile AppCity 311
2/13/2026910 N PAULINA STWest Town1Completed3 daysPhone CallCity 311
1/10/20261215 N LEAVITT STWest Town1Completed3 daysMobile DeviceCity 311
2/16/20261026 N WOOD STWest Town1Completed1 dayInternetCity 311
8/7/20261523 N MAPLEWOOD AVEWest Town1Completed7 daysMobile DeviceCity 311
6/11/20262417 N CAMPBELL AVELogan Square1Completed1 dayInternetCity 311
6/9/20262645 N CALIFORNIA AVELogan Square1Completed2 daysMobile DeviceCity 311
1/22/20261525 W CORTEZ STWest Town1Completed1 dayAlderman's OfficeCity 311
10/14/20252440 N MAPLEWOOD AVELogan Square1Completed8 daysInternetCity 311
2/17/20261625 W BEACH AVEWest Town1Completed1 dayInternetCity 311
5/10/20261019 N HONORE STWest Town1Completed3 daysInternetCity 311
6/11/20262242 N WESTERN AVELogan Square1Completed1 dayMobile DeviceCity 311
2/13/20261251 N PAULINA STWest Town1Completed2 daysMobile DeviceCity 311
6/4/20261445 W WALTON STWest Town1Completed5 daysInternetCity 311
9/6/20261124 N WOLCOTT AVEWest Town1Completed12 daysMobile DeviceCity 311
8/29/20251350 W HUBBARD STWest Town1Completed12 daysInternetCity 311
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