RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4436 locations in the last 30 days (4601 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.

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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/21/20254600 S EVANS AVEGrand Boulevard4Completed2 daysPhone CallCity 311
11/8/20259137 S CONSTANCE AVECalumet Heights8Completed2 daysInternetCity 311
3/23/20265825 S NORMANDY AVEGarfield Ridge13Completed2 daysInternetCity 311
12/1/20255051 W MAYPOLE AVEAustin28Completed2 daysPhone CallCity 311
4/11/20261942 N LOWELL AVEHermosa26Completed2 daysMobile DeviceCity 311
5/2/20263750 S NORMAL AVEBridgeport11Completed2 daysInternetCity 311
10/7/20255859 N OTTAWA AVENorwood Park41Completed2 daysAlderman's OfficeCity 311
10/21/20252630 W ESTES AVEWest Ridge50Completed2 daysPhone CallCity 311
5/12/202613424 S AVENUE MHegewisch10Completed2 daysPhone CallCity 311
5/13/20266749 S ADA STWest Englewood17Completed2 daysPhone CallCity 311
1/18/20263056 N RACINE AVELake View32Completed2 daysPhone CallCity 311
4/15/20263221 W MONTROSE AVEIrving Park33Completed2 daysPhone CallCity 311
6/29/20262509 N LINDER AVEBelmont Cragin30Completed2 daysPhone CallCity 311
5/6/20263840 W ROOSEVELT RDNorth Lawndale24Completed2 daysAlderman's OfficeCity 311
5/2/20266601 S WESTERN AVEChicago Lawn16Completed2 daysPhone CallCity 311
2/18/20261100 W GEORGE STLake View44Completed2 daysInternetCity 311
11/3/20257229 N DAMEN AVERogers Park49Completed2 daysPhone CallCity 311
3/9/20262029 N LECLAIRE AVEBelmont Cragin26Completed2 daysInternetCity 311
3/11/20262204 W OHIO STWest Town36Completed2 daysInternetCity 311
2/23/2026917 N RIDGEWAY AVEHumboldt Park27Completed2 daysPhone CallCity 311
6/7/20262717 W CATALPA AVELincoln Square40Completed2 daysPhone CallCity 311
3/9/20263455 N NORMANDY AVEDunning38Completed2 daysPhone CallCity 311
5/5/202610402 S AVENUE GEast Side10Completed2 daysPhone CallCity 311
3/30/20269900 S PEORIA STWashington Heights21Completed2 daysPhone CallCity 311
5/5/20262520 W FOSTER AVELincoln Square40Completed2 daysInternetCity 311
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