RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4565 locations in the last 30 days (4732 reports) · Last sighting 14 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/17/20262143 W CRYSTAL STWest Town1Open—Mobile DeviceCity 311
9/15/20261414 N NOBLE STWest Town1Open—InternetCity 311
8/30/20262520 N MOZART STLogan Square1Completed12 daysInternetCity 311
11/21/20252427 W CHARLESTON STLogan Square1Completed4 daysInternetCity 311
8/31/20261506 N BOSWORTH AVEWest Town1Completed11 daysInternetCity 311
5/4/20262150 N CALIFORNIA AVELogan Square1Completed2 daysMobile DeviceCity 311
9/21/20261355 N LEAVITT STWest Town1Open—Phone CallCity 311
11/20/20252047 W HADDON AVEWest Town1Completed0 daysMobile DeviceCity 311
7/15/20261427 N MAPLEWOOD AVEWest Town1Completed12 daysInternetCity 311
11/13/20251240 W RACE AVEWest Town1Completed1 dayPhone CallCity 311
9/27/20252912 W SHAKESPEARE AVELogan Square1Completed10 daysMobile DeviceCity 311
9/19/20252330 N CALIFORNIA AVELogan Square1Completed12 daysInternetCity 311
5/1/20261503 N PAULINA STWest Town1Completed4 daysInternetCity 311
9/17/20261530 W WALTON STWest Town1Open—InternetCity 311
9/24/20252021 W DIVISION STWest Town1Completed7 daysInternetCity 311
4/30/20261064 N PAULINA STWest Town1Completed4 daysInternetCity 311
9/24/20251745 W LE MOYNE STWest Town1Completed7 daysAlderman's OfficeCity 311
5/5/20261539 N CLAREMONT AVEWest Town1Completed3 daysInternetCity 311
4/30/20261517 W NORTH AVEWest Town1Completed4 daysPhone CallCity 311
7/20/20261140 N WINCHESTER AVEWest Town1Completed4 daysInternetCity 311
3/15/20261747 W ELLEN STWest Town1Completed3 daysMobile DeviceCity 311
4/30/20262849 W MCLEAN AVELogan Square1Completed4 daysPhone CallCity 311
9/8/20262750 N FAIRFIELD AVELogan Square1Completed10 daysAlderman's OfficeCity 311
11/20/20251720 W ERIE STWest Town1Completed1 dayPhone CallCity 311
4/28/20261110 N HERMITAGE AVEWest Town1Completed1 dayMobile DeviceCity 311
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