RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4334 locations in the last 30 days (4493 reports) · Last sighting 2 days 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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/30/20261009 W ALTGELD STLincoln Park43Completed7 daysMobile DeviceCity 311
8/21/2025100 E 120TH STWest Pullman9Completed8 daysPhone CallCity 311
5/19/2026100 E 71ST STGreater Grand Crossing6Completed3 daysPhone CallCity 311
8/21/2026100 E 71ST STGreater Grand Crossing6Completed10 daysPhone CallCity 311
8/6/2026100 E WALTON STNear North Side42Completed7 daysInternetCity 311
4/22/2026100 N WELLS STLoop34Completed1 dayPhone CallCity 311
7/31/2026100 S WHIPPLE STEast Garfield Park28Completed10 daysPhone CallCity 311
3/21/2026100 W 18TH STNear South Side3Completed2 daysInternetCity 311
1/24/2026100 W NORTH AVELincoln Park2Completed4 daysMobile DeviceCity 311
9/2/202610100 S ARTESIAN AVEBeverly19Completed14 daysPhone CallCity 311
3/29/202610101 S MORGAN STWashington Heights21Completed1 dayMobile DeviceCity 311
9/17/202610101 S PERRY AVERoseland9Open—InternetCity 311
6/29/202610101 S PRINCETON AVERoseland9Completed3 daysInternetCity 311
6/25/202610102 S LOWE AVEWashington Heights21Completed1 dayPhone CallCity 311
7/27/202510102 S LOWE AVEWashington Heights21Completed9 daysPhone CallCity 311
10/21/202510102 S LOWE AVEWashington Heights21Completed7 daysPhone CallCity 311
2/13/202610102 S LOWE AVEWashington Heights21Completed3 daysPhone CallCity 311
8/27/202510102 S PRINCETON AVERoseland9Completed14 daysPhone CallCity 311
9/2/202610104 S ARTESIAN AVEBeverly19Completed14 daysInternetCity 311
9/2/202610104 S ARTESIAN AVEBeverly19Completed14 daysPhone CallCity 311
9/16/202510104 S PRINCETON AVERoseland9Completed10 daysPhone CallCity 311
4/14/202610105 S BEVERLY AVEWashington Heights21Completed1 dayPhone CallCity 311
9/11/202610105 S CALIFORNIA AVEBeverly19Open—InternetCity 311
5/6/202610105 S LA SALLE STRoseland9Completed1 dayPhone CallCity 311
5/5/202610106 S CARPENTER STWashington Heights21Completed2 daysInternetCity 311
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