RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4607 locations in the last 30 days (4760 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/20262001 N ORCHARD STLincoln Park43Completed14 daysInternetCity 311
9/8/20261903 N LINCOLN PARK WESTLincoln Park43Completed15 daysInternetCity 311
10/4/2026334 W WISCONSIN STLincoln Park43Open—Mobile DeviceCity 311
9/30/20261642 N NORTH NORTH PARK AVELincoln Park2Completed5 daysAlderman's OfficeCity 311
7/20/20261627 N DAYTON STLincoln Park43Completed7 daysInternetCity 311
9/20/20262512 N MARSHFIELD AVELincoln Park32Completed15 daysInternetCity 311
9/30/2026235 W EUGENIE STLincoln Park2Completed5 daysAlderman's OfficeCity 311
8/1/20251728 N DAYTON STLincoln Park43Completed6 daysMobile DeviceCity 311
9/8/20261925 N MAUD AVELincoln Park43Completed15 daysMobile DeviceCity 311
7/27/20262008 N SHEFFIELD AVELincoln Park43Completed10 daysMobile DeviceCity 311
7/23/20262015 N KENMORE AVELincoln Park43Completed11 daysPhone CallCity 311
8/12/2026950 W WILLOW STLincoln Park43Completed14 daysMobile DeviceCity 311
8/12/2026935 W WILLOW STLincoln Park43Completed14 daysMobile DeviceCity 311
8/4/20261639 N NORTH PARK AVELincoln Park2Completed6 daysInternetCity 311
9/29/20262131 N SHEFFIELD AVELincoln Park43Open—Mobile DeviceCity 311
7/20/2026415 W GRANT PLLincoln Park43Completed7 daysInternetCity 311
8/17/20262707 N SOUTHPORT AVELincoln Park32Completed14 daysPhone CallCity 311
7/26/20252508 N GREENVIEW AVELincoln Park32Completed11 daysInternetCity 311
10/4/20261800 N HUDSON AVELincoln Park43Open—Phone CallCity 311
10/1/20261729 N SHEFFIELD AVELincoln Park2Completed4 daysMobile DeviceCity 311
10/1/20261723 W SHEFFIELD AVELincoln Park2Completed4 daysMobile DeviceCity 311
10/1/20261707 N SHEFFIELD AVELincoln Park2Completed4 daysMobile DeviceCity 311
10/1/2026940 W CONCORD PLLincoln Park2Completed4 daysMobile DeviceCity 311
9/2/20262212 N BURLING STLincoln Park43Completed13 daysInternetCity 311
8/11/20252234 N CLEVELAND AVELincoln Park43Completed2 daysPhone CallCity 311
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