RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4673 locations in the last 30 days (4823 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/15/202610742 S ST LOUIS AVEMount Greenwood19Completed11 daysMobile DeviceCity 311
8/15/20269156 S OGLESBY AVECalumet Heights7Completed17 daysInternetCity 311
8/15/20266240 N LEGETT AVEForest Glen39Completed11 daysInternetCity 311
8/15/2026824 W WEBSTER AVELincoln Park43Completed12 daysInternetCity 311
8/15/202655 W ILLINOIS STNear North Side42Completed2 daysMobile DeviceCity 311
8/15/202610811 S MEast Side10Completed12 daysMobile DeviceCity 311
8/15/2026433 W DIVERSEY PKWYLincoln Park43Completed12 daysMobile DeviceCity 311
8/15/20263309 W BELLE PLAINE AVEIrving Park33Completed12 daysPhone CallCity 311
8/15/20263213 N WILTON AVELake View44Completed12 daysInternetCity 311
8/15/20262740 N CLARK STLincoln Park43Completed12 daysMobile DeviceCity 311
8/15/20268259 S ST LAWRENCE AVEChatham6Completed9 daysInternetCity 311
8/15/20261421 N RIDGEWAY AVEHumboldt Park26Completed10 daysMobile DeviceCity 311
8/15/20265202 W FOSTER AVEJefferson Park45Completed13 daysMobile DeviceCity 311
8/15/20264320 N MOODY AVEPortage Park38Completed13 daysPhone CallCity 311
8/15/20263918 W 47TH STArcher Heights14Completed11 daysInternetCity 311
8/15/20265240 N WESTERN AVELincoln Square40Completed10 daysMobile DeviceCity 311
8/15/20263901 W MONTROSE AVEIrving Park39Completed11 daysPhone CallCity 311
8/15/20263939 N PITTSBURGH AVEDunning38Completed12 daysMobile DeviceCity 311
8/15/20262444 N JANSSEN AVELincoln Park32Completed10 daysMobile DeviceCity 311
8/15/20265007 N CENTRAL AVEJefferson Park45Completed13 daysInternetCity 311
8/15/20263671 N ELSTON AVEIrving Park33Completed12 daysMobile DeviceCity 311
8/15/20263681 N ELSTON AVEIrving Park33Completed12 daysMobile DeviceCity 311
8/15/20261426 N ORLEANS STNear North Side27Completed10 daysPhone CallCity 311
8/15/202622 E CHICAGO AVENear North Side42Completed2 daysMobile DeviceCity 311
8/15/20261537 S KENNETH AVENorth Lawndale24Completed12 daysInternetCity 311
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