RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4593 locations in the last 30 days (4752 reports) · Last sighting 9 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/3/20266540 S MOZART STChicago Lawn15Completed15 daysAlderman's OfficeCity 311
9/3/20265449 S NOTTINGHAM AVEGarfield Ridge23Completed13 daysMobile DeviceCity 311
9/3/20265418 S KIMBARK AVEHyde Park5Completed5 daysMobile DeviceCity 311
9/3/20267952 S CLYDE AVESouth Chicago8Completed14 daysPhone CallCity 311
9/3/2026708 W BUCKINGHAM PLLake View44Completed8 daysInternetCity 311
9/3/20262015 W POTOMAC AVEWest Town1Completed14 daysPhone CallCity 311
9/3/20263727 N NOTTINGHAM AVEDunning38Completed13 daysInternetCity 311
9/3/20261439 W CATALPA AVEEdgewater48Completed6 daysInternetCity 311
9/3/20264425 N BERNARD STAlbany Park33Completed14 daysInternetCity 311
9/3/20265229 W CARMEN AVEJefferson Park45Completed14 daysInternetCity 311
9/3/20261634 N MCVICKER AVEAustin29Completed14 daysAlderman's OfficeCity 311
9/3/20262047 N KEYSTONE AVEHermosa26Completed14 daysInternetCity 311
9/3/20262622 W NORTH AVEWest Town26Completed13 daysPhone CallCity 311
9/3/20264533 N MELVINA AVEPortage Park38Completed13 daysMobile DeviceCity 311
9/3/20262620 W NORTH AVEWest Town26Completed13 daysPhone CallCity 311
9/3/20264800 N HOYNE AVELincoln Square47Completed13 daysPhone CallCity 311
9/3/20263753 W 69TH PLWest Lawn23Completed13 daysPhone CallCity 311
9/3/20266117 N FAIRFIELD AVEWest Ridge40Completed5 daysInternetCity 311
9/3/20262129 N CLIFTON AVELincoln Park43Completed13 daysMobile DeviceCity 311
9/3/20262140 N SEMINARY AVELincoln Park43Completed13 daysMobile DeviceCity 311
9/3/20265950 S SAWYER AVEChicago Lawn14Completed15 daysAlderman's OfficeCity 311
9/3/20264742 S LAWLER AVEGarfield Ridge22Completed13 daysAlderman's OfficeCity 311
9/3/20261322 N MAPLEWOOD AVEWest Town26Completed13 daysPhone CallCity 311
9/3/20265736 W MELROSE STPortage Park30Completed14 daysPhone CallCity 311
9/3/20265122 W PARKER AVEBelmont Cragin31Completed13 daysPhone CallCity 311
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