RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4304 locations in the last 30 days (4463 reports) · Last sighting 16 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/9/20255052 N MOODY AVEJefferson Park45Completed11 daysInternetCity 311
8/23/20262954 N LOWELL AVEHermosa31Completed11 daysMobile DeviceCity 311
10/5/2026464 W 44TH STNew City15Completed11 daysPhone CallCity 311
9/12/202610938 S MILLARD AVEMount Greenwood19Completed11 daysInternetCity 311
8/30/20252453 W WARNER AVENorth Center47Completed11 daysInternetCity 311
8/8/20252824 W 21ST STSouth Lawndale25Completed11 daysInternetCity 311
8/24/20254531 N WHIPPLE STAlbany Park33Completed11 daysMobile DeviceCity 311
9/11/20257223 S SPAULDING AVEChicago Lawn17Completed11 daysInternetCity 311
6/25/20262713 N DRAKE AVELogan Square35Completed11 daysInternetCity 311
8/31/20253112 S CANAL STBridgeport11Completed11 daysInternetCity 311
8/1/20253624 N ASHLAND AVELake View47Completed11 daysPhone CallCity 311
8/31/20255124 N MASON AVEJefferson Park45Completed11 daysMobile DeviceCity 311
8/24/20254533 N WHIPPLE STAlbany Park33Completed11 daysMobile DeviceCity 311
8/24/20254711 N SACRAMENTO AVEAlbany Park40Completed11 daysInternetCity 311
7/31/20261718 W BEACH AVEWest Town1Completed11 daysInternetCity 311
9/18/20251960 W BERWYN AVELincoln Square40Completed11 daysInternetCity 311
9/4/2026300 S WABASH AVELoop4Completed11 daysMobile DeviceCity 311
9/1/2025424 W BELDEN AVELincoln Park43Completed11 daysPhone CallCity 311
8/17/20265111 S KILPATRICK AVEGarfield Ridge23Completed11 daysPhone CallCity 311
7/10/202610932 S MILLARD AVEMount Greenwood19Completed11 daysInternetCity 311
8/17/20264417 N GREENVIEW AVEUptown47Completed11 daysInternetCity 311
7/31/20252701 N CAMPBELL AVELogan Square35Completed11 daysInternetCity 311
9/3/20263433 N MARSHFIELD AVELake View47Completed11 daysMobile DeviceCity 311
9/19/20251724 S WABASH AVENear South Side3Completed11 daysPhone CallCity 311
7/10/20268011 W IRVING PARK RDDunning38Completed11 daysInternetCity 311
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