RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4302 locations in the last 30 days (4492 reports) · Last sighting 14 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.

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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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/15/20255437 S NARRAGANSETT AVEGarfield Ridge23Completed10 daysMobile DeviceCity 311
8/10/20255245 S MELVINA AVEGarfield Ridge23Completed12 daysInternetCity 311
9/4/20253605 W 61ST PLWest Lawn23Completed8 daysAlderman's OfficeCity 311
8/29/20253605 W 61ST PLWest Lawn23Completed14 daysInternetCity 311
4/15/20264120 W 55TH STWest Elsdon23Completed0 daysPhone CallCity 311
8/30/20253648 W 70TH PLWest Lawn23Completed13 daysMobile DeviceCity 311
11/25/20255106 S NEWCASTLE AVEGarfield Ridge23Completed6 daysMobile DeviceCity 311
8/11/20255101 S LAMON AVEGarfield Ridge23Completed11 daysPhone CallCity 311
8/30/20255217 S CENTRAL AVEGarfield Ridge23Completed13 daysPhone CallCity 311
4/22/20265238 S MOBILE AVEGarfield Ridge23Completed1 dayInternetCity 311
9/4/20255213 S CENTRAL AVEGarfield Ridge23Completed8 daysPhone CallCity 311
9/20/20253944 W 56TH STWest Elsdon23Completed10 daysInternetCity 311
8/8/20253657 W 70TH STWest Lawn23Completed14 daysAlderman's OfficeCity 311
8/7/20255129 S MERRIMAC AVEGarfield Ridge23Completed15 daysMobile DeviceCity 311
8/11/20255013 S LARAMIE AVEGarfield Ridge23Completed14 daysMobile DeviceCity 311
9/20/20253938 W 66TH PLWest Lawn23Completed10 daysPhone CallCity 311
11/24/20255147 S MONITOR AVEGarfield Ridge23Completed7 daysPhone CallCity 311
9/21/20255230 S LUNA AVEGarfield Ridge23Completed9 daysInternetCity 311
8/14/20255233 S HARDING AVEWest Elsdon23Completed11 daysPhone CallCity 311
9/21/20255134 S NASHVILLE AVEGarfield Ridge23Completed9 daysPhone CallCity 311
11/27/20255105 S MEADE AVEGarfield Ridge23Completed4 daysMobile DeviceCity 311
9/22/20255319 S MOBILE AVEGarfield Ridge23Completed8 daysAlderman's OfficeCity 311
8/13/20255117 S KILPATRICK AVEGarfield Ridge23Completed11 daysInternetCity 311
5/7/20265223 S KOLMAR AVEArcher Heights23Completed4 daysInternetCity 311
8/19/20255219 S KILPATRICK AVEGarfield Ridge23Completed5 daysInternetCity 311
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