RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4412 locations in the last 30 days (4570 reports) · Last sighting 18 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.

32080fewer → more

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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/23/20268301 S CARPENTER STAuburn Gresham17Completed1 dayInternetCity 311
2/3/20262951 S ARCHER AVEBridgeport11Completed1 dayPhone CallCity 311
1/5/20263451 W BERTEAU AVEIrving Park33Completed1 dayPhone CallCity 311
12/22/20252732 N WAYNE AVELincoln Park32Completed1 dayInternetCity 311
8/30/20263244 N NATCHEZ AVEDunning38Completed1 dayPhone CallCity 311
7/23/20266536 S KENWOOD AVEWoodlawn20Completed1 dayPhone CallCity 311
5/5/20264605 N MAGNOLIA AVEUptown46Completed1 dayInternetCity 311
2/10/20263525 N NEVA AVEDunning38Completed1 dayInternetCity 311
11/12/20255639 W WARWICK AVEPortage Park38Completed1 dayPhone CallCity 311
6/2/20264014 W WASHINGTON BLVDWest Garfield Park28Completed1 dayMobile DeviceCity 311
3/19/20263025 N OAKLEY AVENorth Center32Completed1 dayPhone CallCity 311
2/16/2026242 W 26TH STArmour Square11Completed1 dayMobile DeviceCity 311
10/28/2025345 W 42ND PLFuller Park3Completed1 dayPhone CallCity 311
9/9/20253254 S UNION AVEBridgeport11Completed1 dayPhone CallCity 311
2/25/20264541 N MALDEN STUptown46Completed1 dayMobile DeviceCity 311
5/5/20264607 N MAGNOLIA AVEUptown46Completed1 dayInternetCity 311
11/5/20255511 W SCHOOL STPortage Park30Completed1 dayInternetCity 311
2/3/20261943 N KILBOURN AVEHermosa26Completed1 dayPhone CallCity 311
3/23/20269114 S SAGINAW AVECalumet Heights7Completed1 dayAlderman's OfficeCity 311
12/11/2025508 W DEMING PLLincoln Park43Completed1 dayPhone CallCity 311
2/16/20265131 W MELROSE STPortage Park31Completed1 dayInternetCity 311
9/10/20263754 N SPAULDING AVEIrving Park33Completed1 dayPhone CallCity 311
4/27/20267856 S COLFAX AVESouth Shore7Completed1 dayAlderman's OfficeCity 311
4/13/20264532 N LOWELL AVEIrving Park39Completed1 dayMobile DeviceCity 311
5/7/20261909 W WINONA STLincoln Square40Completed1 dayInternetCity 311
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