RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4363 locations in the last 30 days (4527 reports) · Last sighting 20 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/23/20253723 W 114TH STMount Greenwood19Completed4 daysPhone CallCity 311
10/23/20254733 W PARKER AVEBelmont Cragin31Completed7 daysAlderman's OfficeCity 311
10/23/20253132 N MARMORA AVEBelmont Cragin30Completed6 daysInternetCity 311
10/23/2025245 W 25TH PLArmour Square11Completed5 daysPhone CallCity 311
10/23/2025161 W EUGENIE STLincoln Park2Completed6 daysInternetCity 311
10/23/20252307 W WARREN BLVDNear West Side27Completed6 daysInternetCity 311
10/23/20254733 W PARKER AVEBelmont Cragin31Completed7 daysPhone CallCity 311
10/23/20254731 W PARKER AVEBelmont Cragin31Completed7 daysPhone CallCity 311
10/23/20254727 W PARKER AVEBelmont Cragin31Completed7 daysPhone CallCity 311
10/23/20251137 N WOOD STWest Town1Completed7 daysInternetCity 311
10/23/2025638 W 44TH STNew City15Completed7 daysInternetCity 311
10/23/20253010 W 55TH STGage Park14Completed4 daysPhone CallCity 311
10/23/20256011 W GUNNISON STPortage Park41Completed6 daysPhone CallCity 311
10/23/20253019 N BROADWAYLake View44Completed7 daysMobile DeviceCity 311
10/23/20255804 W SCHOOL STPortage Park30Completed4 daysPhone CallCity 311
10/23/20252115 N LINCOLN PARK WESTLincoln Park43Completed6 daysPhone CallCity 311
10/23/20251534 W FARWELL AVERogers Park49Completed7 daysInternetCity 311
10/23/20251890 N MILWAUKEE AVELogan Square32Completed6 daysInternetCity 311
10/23/20251620 S MICHIGAN AVENear South Side3Completed4 daysInternetCity 311
10/23/2025134 W 83RD STChatham6Completed5 daysPhone CallCity 311
10/23/20253307 N PANAMA AVEDunning38Completed4 daysMobile DeviceCity 311
10/23/20252814 W 21ST STSouth Lawndale25Completed5 daysInternetCity 311
10/23/20251831 S AVERS AVENorth Lawndale24Completed5 daysPhone CallCity 311
10/23/20252320 N MARMORA AVEBelmont Cragin36Completed5 daysMobile DeviceCity 311
10/23/20252135 W GRANVILLE AVEWest Ridge40Completed7 daysPhone CallCity 311
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