RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4350 locations in the last 30 days (4513 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/2/20263006 S ST LOUIS AVESouth Lawndale22Completed9 daysInternetCity 311
8/2/2025644 W 60TH STEnglewood16Completed9 daysInternetCity 311
9/16/2026152 N PINE AVEAustin37Completed9 daysPhone CallCity 311
9/9/20253549 S UNION AVEBridgeport11Completed9 daysAlderman's OfficeCity 311
7/14/2026622 S OAKLEY BLVDNear West Side28Completed9 daysPhone CallCity 311
7/15/20261831 N KOSTNER AVEHermosa26Completed9 daysPhone CallCity 311
8/4/20255555 N CALIFORNIA AVELincoln Square40Completed9 daysPhone CallCity 311
7/21/20264817 W HIRSCH STAustin37Completed9 daysMobile DeviceCity 311
9/9/20253545 S UNION AVEBridgeport11Completed9 daysAlderman's OfficeCity 311
9/1/20253136 N SPAULDING AVEAvondale35Completed9 daysInternetCity 311
8/17/20269100 S CONSTANCE AVECalumet Heights8Completed9 daysPhone CallCity 311
9/16/20252545 N MONITOR AVEBelmont Cragin30Completed9 daysMobile DeviceCity 311
9/14/20265821 N NEWARK AVENorwood Park41Completed9 daysInternetCity 311
8/13/20257278 W MYRTLE AVENorwood Park41Completed9 daysAlderman's OfficeCity 311
8/18/20255727 W WASHINGTON BLVDAustin29Completed9 daysMobile DeviceCity 311
8/6/20255424 S NAGLE AVEGarfield Ridge23Completed9 daysMobile DeviceCity 311
9/29/2026715 N LOREL AVEAustin37Completed9 daysPhone CallCity 311
8/5/20251319 W CULLERTON STLower West Side25Completed9 daysMobile DeviceCity 311
10/13/20253218 W BELLE PLAINE AVEIrving Park33Completed9 daysPhone CallCity 311
8/12/20265344 N NAGLE AVENorwood Park41Completed9 daysMobile DeviceCity 311
9/16/20255132 W ADDISON STPortage Park30Completed9 daysInternetCity 311
9/27/20253140 S WALLACE STBridgeport11Completed9 daysInternetCity 311
9/22/20251801 N KEDZIE AVELogan Square26Completed9 daysPhone CallCity 311
7/13/20263320 N NEW ENGLAND AVEDunning38Completed9 daysPhone CallCity 311
9/23/20263142 N KOSTNER AVEHermosa31Completed9 daysPhone CallCity 311
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