RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4513 locations in the last 30 days (4668 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.

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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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/27/20261214 N ROCKWELL STWest Town26Completed14 daysInternetCity 311
9/4/20255224 W NELSON STBelmont Cragin31Completed14 daysInternetCity 311
9/9/20264847 N WASHTENAW AVELincoln Square40Completed14 daysInternetCity 311
8/6/20261512 N KEDVALE AVEHumboldt Park36Completed14 daysInternetCity 311
8/18/20262034 N DAYTON STLincoln Park43Completed14 daysInternetCity 311
8/27/20265425 W POTOMAC AVEAustin37Completed14 daysPhone CallCity 311
9/7/20261621 N HUMBOLDT BLVDWest Town26Completed14 daysPhone CallCity 311
8/26/20254924 N OAKLEY AVELincoln Square40Completed14 daysInternetCity 311
8/26/20256027 N ROCKWELL STWest Ridge40Completed14 daysInternetCity 311
7/29/20266500 S PAULINA STWest Englewood15Completed14 daysAlderman's OfficeCity 311
7/23/20265728 N MEADE AVENorwood Park45Completed14 daysInternetCity 311
9/15/20253615 S WASHTENAW AVEBrighton Park12Completed14 daysAlderman's OfficeCity 311
8/20/20258012 S SAWYER AVEAshburn18Completed14 daysPhone CallCity 311
7/30/20265960 W 60TH STClearing13Completed14 daysInternetCity 311
7/29/20266400 S PAULINA STWest Englewood15Completed14 daysAlderman's OfficeCity 311
8/11/20263309 S SHIELDS AVEArmour Square11Completed14 daysInternetCity 311
7/27/20265614 N CHRISTIANA AVENorth Park39Completed14 daysPhone CallCity 311
7/23/20265016 N MANGO AVEJefferson Park45Completed14 daysMobile DeviceCity 311
7/30/20252753 W HADDON AVEWest Town36Completed14 daysInternetCity 311
9/10/20254150 N BROADWAY STUptown46Completed14 daysInternetCity 311
8/5/20265840 N EAST CIRCLE AVENorwood Park41Completed14 daysPhone CallCity 311
7/21/20255609 N MILTIMORE AVEJefferson Park45Completed14 daysAlderman's OfficeCity 311
8/11/20262958 N MARMORA AVEBelmont Cragin30Completed14 daysInternetCity 311
8/18/2026851 W 68TH STEnglewood16Completed14 daysMobile DeviceCity 311
9/14/20262100 N MERRIMAC AVEBelmont Cragin36Completed14 daysPhone CallCity 311
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