RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4593 locations in the last 30 days (4751 reports) · Last sighting 21 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/7/2026718 N HARDING AVEHumboldt Park37Completed10 daysPhone CallCity 311
11/19/2025718 N DRAKE AVEHumboldt Park27Completed0 daysInternetCity 311
8/6/2026717 W WILLOW STLincoln Park2Completed4 daysInternetCity 311
8/5/2025717 W MONTROSE AVEUptown46Completed13 daysPhone CallCity 311
7/27/2025717 S CAMPBELL AVENear West Side28Completed8 daysMobile DeviceCity 311
4/13/2026717 N CHRISTIANA AVEHumboldt Park27Completed3 daysInternetCity 311
4/29/2026717 N CHRISTIANA AVEHumboldt Park27Completed2 daysInternetCity 311
10/20/2025717 E 92ND PLChatham8Completed4 daysMobile DeviceCity 311
1/31/20267173 W DICKENS AVEAustin29Completed2 daysPhone CallCity 311
2/18/20267171 W ARMITAGE AVEAustin29Completed1 dayPhone CallCity 311
1/21/20267167 W ARMITAGE AVEAustin29Completed1 dayAlderman's OfficeCity 311
9/9/20257163 W GRAND AVEMontclare29Completed10 daysPhone CallCity 311
6/16/20267162 N MCALPIN AVEForest Glen45Completed7 daysPhone CallCity 311
9/3/20257162 N MCALPIN AVEForest Glen45Completed13 daysMobile DeviceCity 311
1/21/20267161 W ARMITAGE AVEAustin29Completed1 dayAlderman's OfficeCity 311
8/6/2025715 W ROSCOE STLake View44Completed12 daysPhone CallCity 311
1/9/2026715 W ROSCOE STLake View44Completed3 daysPhone CallCity 311
5/15/2026715 W ALDINE AVELake View44Completed4 daysInternetCity 311
4/24/2026715 W ALDINE AVELake View44Completed4 daysInternetCity 311
4/29/2026715 W ALDINE AVELake View44Completed5 daysInternetCity 311
4/13/2026715 W 61ST STEnglewood16Completed1 dayAlderman's OfficeCity 311
7/17/2026715 W 51ST STNew City20Completed13 daysInternetCity 311
7/30/2026715 W 50TH STNew City20Completed11 daysPhone CallCity 311
10/8/2025715 S FEDERAL STLoop4Completed2 daysPhone CallCity 311
9/2/2025715 N ST LOUIS AVEHumboldt Park27Completed10 daysPhone CallCity 311
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