RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4454 locations in the last 30 days (4625 reports) · Last sighting yesterday

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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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/22/20252519 N ROCKWELL STLogan Square1Completed1 dayPhone CallCity 311
9/2/20252519 N ROCKWELL STLogan Square1Completed8 daysPhone CallCity 311
7/29/20262519 S HAMLIN AVESouth Lawndale22Completed9 daysAlderman's OfficeCity 311
5/5/20262519 W 82ND STAshburn18Completed3 daysPhone CallCity 311
10/20/20252519 W CARMEN AVELincoln Square40Completed6 daysMobile DeviceCity 311
9/25/20262519 W GRENSHAW STNear West Side28Completed12 daysMobile DeviceCity 311
3/21/20262519 W LAWRENCE AVELincoln Square40Completed1 dayInternetCity 311
10/8/2025251 E 121ST PLWest Pullman9Completed7 daysInternetCity 311
9/24/2025251 E 121ST PLWest Pullman9Completed5 daysInternetCity 311
9/24/2025251 E 121ST STWest Pullman9Completed5 daysInternetCity 311
11/13/20252520 E 96TH STSouth Deering7Completed1 dayAlderman's OfficeCity 311
10/9/20252520 N DRAKE AVELogan Square35Completed11 daysInternetCity 311
6/5/20262520 N LINDEN PLLogan Square35Completed4 daysInternetCity 311
5/28/20262520 N MARMORA AVEBelmont Cragin30Completed6 daysPhone CallCity 311
6/4/20262520 N MARMORA AVEBelmont Cragin30Completed4 daysPhone CallCity 311
9/14/20252520 N MARMORA AVEBelmont Cragin30Completed11 daysPhone CallCity 311
8/13/20252520 N MARMORA AVEBelmont Cragin30Completed1 dayPhone CallCity 311
7/21/20252520 N MARMORA AVEBelmont Cragin30Completed11 daysPhone CallCity 311
3/30/20262520 N MARSHFIELD AVELincoln Park32Completed2 daysInternetCity 311
8/30/20262520 N MOZART STLogan Square1Completed12 daysInternetCity 311
9/14/20252520 N SHEFFIELD AVELincoln Park43Completed10 daysInternetCity 311
8/20/20252520 N WAYNE AVELincoln Park32Completed13 daysPhone CallCity 311
7/9/20262520 N WAYNE AVELincoln Park32Completed7 daysPhone CallCity 311
8/18/20262520 S ARCHER AVEBridgeport11Completed10 daysInternetCity 311
11/14/20252520 S OAKLEY AVELower West Side25Completed3 daysInternetCity 311
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