RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4550 locations in the last 30 days (4702 reports) · Last sighting 16 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/19/20253540 N RETA AVELake View44Completed1 dayPhone CallCity 311
8/19/20253046 N SHEFFIELD AVELake View44Completed1 dayPhone CallCity 311
8/19/20251349 W CORNELIA AVELake View44Completed16 daysInternetCity 311
8/19/20255654 W GRACE STPortage Park38Completed9 daysInternetCity 311
8/19/2025933 W 32ND STBridgeport11Completed1 dayPhone CallCity 311
8/19/20258715 S HERMITAGE AVEAuburn Gresham18Completed0 daysInternetCity 311
8/19/20253630 N SOUTHPORT AVELake View44Completed14 daysInternetCity 311
8/19/20252121 N CLIFTON AVELincoln Park43Completed14 daysMobile DeviceCity 311
8/19/20252145 N CLIFTON AVELincoln Park43Completed14 daysMobile DeviceCity 311
8/19/2025619 E 92ND STChatham8Completed7 daysInternetCity 311
8/19/20253536 N NATCHEZ AVEDunning38Completed9 daysInternetCity 311
8/19/20257445 S ELLIS AVEGreater Grand Crossing6Completed7 daysPhone CallCity 311
8/19/20254934 S MICHIGAN AVEGrand Boulevard3Completed6 daysInternetCity 311
8/19/2025745 W BRIAR PLLake View44Completed16 daysMobile DeviceCity 311
8/19/202530 E ELM STNear North Side2Completed9 daysAlderman's OfficeCity 311
8/19/20252542 W 115TH PLMorgan Park19Completed9 daysMobile DeviceCity 311
8/19/202518 E ELM STNear North Side2Completed9 daysAlderman's OfficeCity 311
8/19/202525 E DIVISION STNear North Side2Completed9 daysAlderman's OfficeCity 311
8/19/2025432 W 110TH PLRoseland21Completed10 daysPhone CallCity 311
8/19/202510259 S BENSLEY AVESouth Deering7Completed7 daysPhone CallCity 311
8/19/20252712 N MONTICELLO AVELogan Square35Completed10 daysMobile DeviceCity 311
8/19/20256514 N NORTHWEST HWYEdison Park41Completed6 daysInternetCity 311
8/19/20253049 N KENNETH AVEHermosa31Completed10 daysAlderman's OfficeCity 311
8/19/20251756 W CORNELIA AVELake View47Completed6 daysAlderman's OfficeCity 311
8/19/20251258 W WEBSTER AVELincoln Park2Completed9 daysAlderman's OfficeCity 311
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