RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4365 locations in the last 30 days (4524 reports) · Last sighting 13 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.

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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
9/27/20251043 N LAWNDALE AVEHumboldt Park27Completed9 daysInternetCity 311
9/27/20251738 N NATOMA AVEAustin29Completed5 daysMobile DeviceCity 311
9/27/20251115 W 18TH PLLower West Side25Completed3 daysMobile DeviceCity 311
9/27/20251832 S CARPENTER STLower West Side25Completed3 daysMobile DeviceCity 311
9/28/20255230 N MOODY AVEJefferson Park45Completed9 daysMobile DeviceCity 311
9/28/20251517 W OLIVE AVEEdgewater48Completed5 daysPhone CallCity 311
9/28/20252346 W MOFFAT STLogan Square32Completed8 daysInternetCity 311
9/28/20253141 S THROOP STBridgeport11Completed9 daysInternetCity 311
9/28/20254839 N KEDVALE AVEAlbany Park39Completed5 daysPhone CallCity 311
9/28/20253811 W 46TH STArcher Heights14Completed5 daysPhone CallCity 311
9/28/20252437 W BERTEAU AVENorth Center47Completed8 daysMobile DeviceCity 311
9/28/202569 E 16TH STNear South Side3Completed10 daysInternetCity 311
9/28/20251117 W PATTERSON AVELake View44Completed9 daysMobile DeviceCity 311
9/28/2025720 E 92ND PLChatham8Completed5 daysInternetCity 311
9/28/20252844 N LOWELL AVEHermosa31Completed4 daysInternetCity 311
9/28/20256839 S MAPLEWOOD AVEChicago Lawn16Completed10 daysPhone CallCity 311
9/28/20255709 S MORGAN STEnglewood16Completed10 daysMobile DeviceCity 311
9/28/20253303 N OAKLEY AVENorth Center32Completed8 daysInternetCity 311
9/28/20253933 N OAKLEY AVENorth Center47Completed8 daysMobile DeviceCity 311
9/28/202510627 S RIDGEWAY AVEMount Greenwood19Completed5 daysMobile DeviceCity 311
9/28/20253414 N SHEFFIELD AVELake View44Completed2 daysInternetCity 311
9/28/20251158 W CULLERTON STLower West Side25Completed2 daysMobile DeviceCity 311
9/28/20253535 N RETA AVELake View44Completed2 daysMobile DeviceCity 311
9/28/2025702 S KEELER AVEWest Garfield Park24Completed8 daysInternetCity 311
9/28/2025340 S KILBOURN AVEWest Garfield Park28Completed4 daysMobile DeviceCity 311
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