RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4408 locations in the last 30 days (4571 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/20253804 N CHRISTIANA AVEIrving Park33Completed8 daysAlderman's OfficeCity 311
10/7/20254851 W MONTROSE AVEPortage Park45Completed10 daysPhone CallCity 311
10/7/20254950 N CHRISTIANA AVEAlbany Park33Completed8 daysAlderman's OfficeCity 311
10/7/20251711 E 85TH STAvalon Park8Completed3 daysInternetCity 311
10/7/20252750 N RACINE AVELincoln Park32Completed7 daysPhone CallCity 311
10/7/2025861 N DEARBORN STNear North Side42Completed3 daysInternetCity 311
10/7/20251229 S AVERS AVENorth Lawndale24Completed2 daysAlderman's OfficeCity 311
10/7/20253039 S BONFIELD STBridgeport11Completed3 daysPhone CallCity 311
10/7/20253857 N NEW ENGLAND AVEDunning38Completed10 daysPhone CallCity 311
10/7/20252 W ERIE STNear North Side42Completed2 daysMobile DeviceCity 311
10/7/20255631 S KOLMAR AVEWest Elsdon13Completed8 daysAlderman's OfficeCity 311
10/7/20253749 N WILTON AVELake View46Completed7 daysInternetCity 311
10/7/20255539 S KOLMAR AVEWest Elsdon13Completed8 daysAlderman's OfficeCity 311
10/7/202510843 S PRAIRIE AVERoseland9Completed3 daysPhone CallCity 311
10/7/20255613 S NAGLE AVEGarfield Ridge13Completed3 daysAlderman's OfficeCity 311
10/7/20252036 W WARREN BLVDNear West Side27Completed13 daysPhone CallCity 311
10/7/20255612 N JERSEY AVENorth Park39Completed7 daysAlderman's OfficeCity 311
10/7/20254628 S SPAULDING AVEBrighton Park12Completed10 daysAlderman's OfficeCity 311
10/7/20251904 N HARDING AVEHermosa26Completed9 daysPhone CallCity 311
10/7/20252037 N KILDARE AVEHermosa35Completed9 daysInternetCity 311
10/7/20255349 N ST LOUIS AVENorth Park39Completed7 daysMobile DeviceCity 311
10/7/20251012 W CULLERTON STLower West Side25Completed3 daysInternetCity 311
10/7/20257279 W MYRTLE AVENorwood Park41Completed10 daysAlderman's OfficeCity 311
10/7/20255233 S MOBILE AVEGarfield Ridge23Completed2 daysAlderman's OfficeCity 311
10/7/20257280 W MYRTLE AVENorwood Park41Completed10 daysAlderman's OfficeCity 311
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