RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4217 locations in the last 30 days (4373 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/30/20254943 N MOODY AVEJefferson Park45Completed9 daysAlderman's OfficeCity 311
9/30/20251215 W MONTANA STLincoln Park32Completed6 daysInternetCity 311
9/30/20256239 N NAPER AVENorwood Park45Completed9 daysInternetCity 311
9/30/20254135 N KEDVALE AVEIrving Park39Completed9 daysInternetCity 311
9/30/20255129 S MOBILE AVEGarfield Ridge23Completed6 daysAlderman's OfficeCity 311
9/30/20255223 W BELMONT AVEBelmont Cragin30Completed7 daysInternetCity 311
9/30/20257404 N TALMAN AVEWest Ridge50Completed9 daysAlderman's OfficeCity 311
9/30/20256315 N CENTRAL PARK AVENorth Park50Completed7 daysPhone CallCity 311
9/30/20251455 W RASCHER AVEEdgewater48Completed9 daysPhone CallCity 311
9/30/20253138 W WILSON AVEAlbany Park33Completed8 daysAlderman's OfficeCity 311
9/30/20257623 S BISHOP STAuburn Gresham17Completed1 dayPhone CallCity 311
9/30/20252457 W ARMITAGE AVELogan Square1Completed9 daysInternetCity 311
9/30/202547 E 23RD STNear South Side3Completed8 daysInternetCity 311
9/30/20251701 N MILWAUKEE AVEWest Town32Completed8 daysInternetCity 311
9/30/20255824 N SPAULDING AVENorth Park39Completed3 daysPhone CallCity 311
9/30/20252015 N KENMORE AVELincoln Park43Completed8 daysInternetCity 311
9/30/20253648 W 70TH PLWest Lawn23Completed6 daysMobile DeviceCity 311
9/30/20256333 N OAK PARK AVENorwood Park41Completed7 daysInternetCity 311
9/30/20253417 W FULTON BLVDEast Garfield Park28Completed2 daysPhone CallCity 311
9/30/20257208 S CALIFORNIA AVEChicago Lawn18Completed3 daysPhone CallCity 311
9/30/20257211 W MYRTLE AVENorwood Park41Completed7 daysMobile DeviceCity 311
9/30/20252923 N NEW ENGLAND AVEMontclare36Completed6 daysInternetCity 311
9/30/20252724 S QUINN STBridgeport11Completed15 daysAlderman's OfficeCity 311
9/30/20253901 W 103RD STMount Greenwood19Completed7 daysAlderman's OfficeCity 311
9/30/20254861 N OAK PARK AVENorwood Park41Completed7 daysAlderman's OfficeCity 311
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