RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4657 locations in the last 30 days (4806 reports) · Last sighting 18 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/30/20257045 N MCALPIN AVEForest Glen45Completed12 daysInternetCity 311
9/6/20255231 W NEWPORT AVEPortage Park31Completed12 daysInternetCity 311
8/31/20258310 S INDIANA AVEChatham6Completed12 daysPhone CallCity 311
7/22/20262607 W HADDON AVEWest Town36Completed12 daysInternetCity 311
7/23/20262620 N MARSHFIELD AVELincoln Park32Completed12 daysMobile DeviceCity 311
8/27/20261435 W 16TH STLower West Side25Completed12 daysMobile DeviceCity 311
8/27/20261618 S LOOMIS STLower West Side25Completed12 daysMobile DeviceCity 311
8/14/20254553 N WOLCOTT AVELincoln Square47Completed12 daysInternetCity 311
10/8/20253530 W DICKENS AVELogan Square35Completed12 daysAlderman's OfficeCity 311
9/3/20251928 N KENMORE AVELincoln Park43Completed12 daysInternetCity 311
9/24/20266227 S CLAREMONT AVEChicago Lawn16Completed12 daysPhone CallCity 311
7/18/20266130 W PATTERSON AVEDunning38Completed12 daysMobile DeviceCity 311
8/7/20255625 N ST LOUIS AVENorth Park39Completed12 daysAlderman's OfficeCity 311
8/21/20254411 N MAGNOLIA AVEUptown46Completed12 daysMobile DeviceCity 311
7/24/20251655 N KIMBALL AVEHumboldt Park26Completed12 daysInternetCity 311
7/30/20252429 W FLETCHER STNorth Center47Completed12 daysInternetCity 311
9/11/20258239 S DR MARTIN LUTHER KING JR DRChatham6Completed12 daysMobile DeviceCity 311
9/7/20253300 N KARLOV AVEIrving Park30Completed12 daysMobile DeviceCity 311
8/14/20262900 N MELVINA AVEBelmont Cragin30Completed12 daysPhone CallCity 311
9/10/20251633 W LE MOYNE STWest Town1Completed12 daysAlderman's OfficeCity 311
8/12/20266422 N MAGNOLIA AVERogers Park49Completed12 daysMobile DeviceCity 311
8/13/20266454 S LAPORTE AVEClearing13Completed12 daysInternetCity 311
7/24/2026438 W 101ST PLWashington Heights9Completed12 daysInternetCity 311
9/17/2025552 W OAKDALE AVELake View44Completed12 daysAlderman's OfficeCity 311
9/17/20255420 N CAMPBELL AVELincoln Square40Completed12 daysInternetCity 311
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