RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4453 locations in the last 30 days (4618 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

57,418 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/6/20262309 W ADDISON STNorth Center32Completed5 daysInternetCity 311
8/31/20252309 W SUPERIOR STWest Town36Completed10 daysInternetCity 311
8/19/2026230 E ONTARIO STNear North Side2Completed16 daysInternetCity 311
6/21/2026230 N PINE AVEAustin37Completed4 daysMobile DeviceCity 311
9/17/2026230 N PINE AVEAustin37Completed12 daysInternetCity 311
4/17/2026230 N PINE AVEAustin37Completed0 daysMobile DeviceCity 311
3/23/2026230 W 22ND PLArmour Square11Completed1 dayInternetCity 311
3/23/2026230 W 22ND PLArmour Square11Completed1 dayInternetCity 311
9/12/2025230 W 23RD PLArmour Square11Completed7 daysMobile DeviceCity 311
8/20/2025230 W 23RD PLArmour Square11Completed9 daysMobile DeviceCity 311
1/5/20262310 N HOYNE AVELogan Square32Completed1 dayInternetCity 311
3/11/20262310 N KEATING AVEBelmont Cragin31Completed5 daysPhone CallCity 311
8/22/20252310 N LARAMIE AVEBelmont Cragin31Completed13 daysInternetCity 311
8/12/20252310 N LEAVITT STLogan Square32Completed14 daysAlderman's OfficeCity 311
5/12/20262310 N LEAVITT STLogan Square32Completed2 daysPhone CallCity 311
8/3/20262310 N LINCOLN AVELincoln Park43Completed15 daysInternetCity 311
9/29/20262310 N LINCOLN AVELincoln Park43Completed14 daysInternetCity 311
3/25/20262310 N MCVICKER AVEBelmont Cragin36Completed2 daysMobile DeviceCity 311
9/21/20262310 S MILLARD AVESouth Lawndale22Completed10 daysInternetCity 311
11/17/20252310 S STATE STNear South Side3Completed1 dayPhone CallCity 311
4/9/20262310 S STATE STNear South Side3Completed1 dayPhone CallCity 311
8/15/20252310 W 18TH PLLower West Side25Completed12 daysInternetCity 311
6/2/20262310 W 18TH PLLower West Side25Completed3 daysInternetCity 311
2/12/20262310 W BERTEAU AVENorth Center47Completed1 dayInternetCity 311
8/1/20252310 W BLOOMINGDALE AVELogan Square32Completed10 daysInternetCity 311
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