RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4381 locations in the last 30 days (4542 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.

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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/9/20261258 W GREENLEAF AVERogers Park49Completed15 daysMobile DeviceCity 311
8/12/20265047 W CULLOM AVEPortage Park45Completed15 daysInternetCity 311
9/2/202610942 S CEast Side10Completed15 daysInternetCity 311
7/13/20265474 S GREENWOOD AVEHyde Park5Completed15 daysMobile DeviceCity 311
8/4/20267116 W FOSTER AVENorwood Park41Completed15 daysMobile DeviceCity 311
8/9/20265501 W HUTCHINSON STPortage Park38Completed15 daysMobile DeviceCity 311
8/24/20261325 N CENTRAL AVEAustin37Completed15 daysInternetCity 311
8/27/20257041 S YALE AVEGreater Grand Crossing6Completed15 daysInternetCity 311
9/3/20265950 S SAWYER AVEChicago Lawn14Completed15 daysAlderman's OfficeCity 311
8/5/20264654 N DAMEN AVELincoln Square47Completed15 daysPhone CallCity 311
8/27/20262914 S ELIAS CTBridgeport11Completed15 daysInternetCity 311
8/5/20252168 N MANGO AVEBelmont Cragin36Completed15 daysPhone CallCity 311
8/6/20262206 N BURLING STLincoln Park43Completed15 daysInternetCity 311
8/5/20255643 W FULLERTON AVEBelmont Cragin36Completed15 daysInternetCity 311
8/19/20263044 N HAMILTON AVENorth Center32Completed15 daysMobile DeviceCity 311
8/7/20255644 W BYRON STPortage Park38Completed15 daysInternetCity 311
8/24/20264919 N LESTER AVEJefferson Park45Completed15 daysPhone CallCity 311
8/6/20262234 N BURLING STLincoln Park43Completed15 daysInternetCity 311
8/4/20252968 N RIDGEWAY AVEAvondale35Completed15 daysInternetCity 311
8/10/20262636 N HALSTED STLincoln Park43Completed15 daysInternetCity 311
8/27/20262615 W 23RD PLSouth Lawndale25Completed15 daysInternetCity 311
8/5/20262446 W BRADLEY PLNorth Center47Completed15 daysMobile DeviceCity 311
8/10/20263752 N ASHLAND AVELake View47Completed15 daysInternetCity 311
8/26/20265937 S MAY STEnglewood16Completed15 daysPhone CallCity 311
8/20/20253918 W 84TH STAshburn18Completed15 daysInternetCity 311
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