RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4560 locations in the last 30 days (4707 reports) · Last sighting 22 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/9/2025546 W 33RD STBridgeport11Completed9 daysInternetCity 311
9/9/20252130 N KEDZIE AVELogan Square35Completed14 daysAlderman's OfficeCity 311
9/9/202526 E 91ST STChatham6Completed9 daysPhone CallCity 311
9/9/20256907 N CLARK STRogers Park49Completed13 daysMobile DeviceCity 311
9/9/20257733 S BISHOP STAuburn Gresham17Completed13 daysPhone CallCity 311
9/9/20255104 W MELROSE STPortage Park31Completed13 daysMobile DeviceCity 311
9/9/20256554 W 64TH STClearing13Completed14 daysAlderman's OfficeCity 311
9/9/20254905 W WASHINGTON BLVDAustin28Completed9 daysPhone CallCity 311
9/9/20254400 N GREENVIEW AVEUptown47Completed10 daysAlderman's OfficeCity 311
9/9/20254838 W SCHOOL STPortage Park31Completed13 daysPhone CallCity 311
9/9/20252908 N SPRINGFIELD AVEAvondale31Completed13 daysMobile DeviceCity 311
9/9/20251658 W DIVERSEY PKWYLake View32Completed8 daysPhone CallCity 311
9/9/20251757 W 17TH STLower West Side25Completed14 daysInternetCity 311
9/9/20253144 W 42ND STBrighton Park12Completed7 daysAlderman's OfficeCity 311
9/9/20251754 W 17TH STLower West Side25Completed14 daysInternetCity 311
9/9/20251651 W DIVERSEY AVELincoln Park32Completed8 daysAlderman's OfficeCity 311
9/9/20255018 W BYRON STPortage Park45Completed9 daysMobile DeviceCity 311
9/9/20251457 N MONITOR AVEAustin29Completed14 daysPhone CallCity 311
9/9/2025946 N WELLS STNear North Side27Completed10 daysMobile DeviceCity 311
9/9/20255932 N CHRISTIANA AVENorth Park39Completed10 daysMobile DeviceCity 311
9/9/20252744 W WARREN BLVDEast Garfield Park27Completed10 daysPhone CallCity 311
9/9/20253610 W 82ND STAshburn18Completed13 daysAlderman's OfficeCity 311
9/9/20253817 N WAYNE AVELake View44Completed13 daysInternetCity 311
9/9/20257942 S TRUMBULL AVEAshburn18Completed13 daysAlderman's OfficeCity 311
9/9/20255202 N MEADE AVEJefferson Park45Completed9 daysInternetCity 311
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