RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4545 locations in the last 30 days (4708 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.

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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/3/20264657 S SPRINGFIELD AVEArcher Heights14Completed18 daysInternetCity 311
8/27/2026159 W NORTH AVENear North Side2Completed18 daysInternetCity 311
8/27/20262867 N CLYBOURN AVENorth Center32Completed18 daysMobile DeviceCity 311
8/3/20264329 W SHAKESPEARE AVEHermosa35Completed18 daysMobile DeviceCity 311
8/30/20261746 W CORNELIA AVELake View47Completed18 daysMobile DeviceCity 311
8/27/20261855 W ARMITAGE AVELogan Square32Completed18 daysMobile DeviceCity 311
8/1/20254131 W SCHOOL STIrving Park30Completed18 daysInternetCity 311
9/3/20264558 N MILWAUKEE AVEPortage Park45Completed17 daysInternetCity 311
8/1/20252116 W BIRCHWOOD AVERogers Park49Completed17 daysInternetCity 311
7/31/20256228 N TRIPP AVEForest Glen39Completed17 daysMobile DeviceCity 311
8/14/20264630 N BEACON STUptown46Completed17 daysInternetCity 311
7/31/20252120 W BELMONT AVENorth Center32Completed17 daysInternetCity 311
8/14/20264449 N MALDEN STUptown46Completed17 daysInternetCity 311
8/1/20254838 W SCHOOL STPortage Park31Completed17 daysPhone CallCity 311
8/4/20252420 W CORTEZ STWest Town36Completed17 daysPhone CallCity 311
8/3/20266357 S RICHMOND STChicago Lawn15Completed17 daysInternetCity 311
8/3/20265438 N NEWLAND AVENorwood Park41Completed17 daysMobile DeviceCity 311
7/31/20264148 N MONITOR AVEPortage Park38Completed17 daysPhone CallCity 311
8/1/20255046 W FLETCHER STBelmont Cragin31Completed17 daysMobile DeviceCity 311
8/4/2025822 N CALIFORNIA AVEWest Town36Completed17 daysInternetCity 311
8/28/20262344 N KOSTNER AVEHermosa31Completed17 daysPhone CallCity 311
8/5/20252438 W HADDON AVEWest Town36Completed17 daysMobile DeviceCity 311
7/24/20266341 W BERTEAU AVEPortage Park38Completed17 daysPhone CallCity 311
7/31/20264401 S CAMPBELL AVEBrighton Park15Completed17 daysAlderman's OfficeCity 311
7/31/20264301 S CAMPBELL AVEBrighton Park15Completed17 daysAlderman's OfficeCity 311
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