Crime Grade · FBI UCR Data · 2020
Quincy, IL Crime Grade
How Quincy grades for violent crime against every other reporting U.S. city — and against the rest of Illinois — based on the FBI's Uniform Crime Reporting data.
National
9/10
vs. all U.S. cities ≥ 25,000 population
Illinois
10/10
vs. Illinois cities ≥ 10,000 population
In 2020, the violent crime rate in Quincy, IL was 494.2 per 100,000 residents (197 incidents over a population of 39,860). That puts Quincy Infinity% above the U.S. rate of 0.0 and 11% above the Illinois statewide rate of 444.2.
That ranks Quincy #3,272 of 3,771 ranked U.S. cities, safer than 13% of them, and #194 of 214 in Illinois. Violent crime is down 19% year over year and down 4% over the last five years.
Quincy, IL crime — key facts
- National Crime Grade
- F (9/10)
- Illinois Grade
- F (10/10)
- Violent crime rate
- 494.2 / 100k
- National rank
- #3,272 of 3,771
- IL rank
- #194 of 214
- Safer than
- 13% of U.S. cities
- Year over year
- down 19%
- 5-year change
- down 4%
- Population
- 39,860
- Reporting agency
- Quincy Police Department
- Data year
- 2020 · FBI UCR
Reported by Quincy Police Department (FBI ORI IL0010300) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
About Quincy, IL
Also known as
- Gem City
- Bluffs
Name history sourced from the USGS Geographic Names Information System (GNIS) — public-domain federal geographic-names data.
Violent crime rate, 5-year trend
Per 100,000 residents. Quincy (red), Illinois (blue), U.S. average (gray dashed).
Quincy vs. U.S., 2020 — by offense
Rates per 100,000 residents for each offense category.
Full data, last 5 years
Rates per 100,000 residents. Raw counts in parentheses.
| Offense | 2016 | 2017 | 2018 | 2019 | 2020 |
|---|---|---|---|---|---|
| Violent crime | 512.3(209) | 575.2(233) | 626.1(252) | 608.2(243) | 494.2(197) |
| Murder | 0.0(0) | 0.0(0) | 2.5(1) | 7.5(3) | 0.0(0) |
| Rape | 105.4(43) | 108.6(44) | 126.7(51) | 135.2(54) | 90.3(36) |
| Robbery | 56.4(23) | 46.9(19) | 34.8(14) | 30.0(12) | 35.1(14) |
| Aggravated assault | 350.5(143) | 419.7(170) | 462.1(186) | 435.5(174) | 368.8(147) |
| Property crime | 3264.8(1,332) | 2965.0(1,201) | 3207.5(1,291) | 3043.5(1,216) | 2867.5(1,143) |
| Burglary | 723.1(295) | 548.1(222) | 536.7(216) | 478.0(191) | 328.7(131) |
| Larceny | 2419.2(987) | 2296.0(930) | 2539.2(1,022) | 2445.3(977) | 2398.4(956) |
| Motor vehicle theft | 100.5(41) | 103.7(42) | 124.2(50) | 105.1(42) | 112.9(45) |
How the Crime Grade is calculated
- What is the source of the Quincy, IL Crime Grade?
- FBI Uniform Crime Reporting via the Crime Data Explorer. Agency-level data, pulled directly. No third-party aggregators, no proprietary score.
- What metric does the Quincy Crime Grade use?
- Violent crime rate per 100,000 residents (murder + rape + robbery + aggravated assault), most recent fully-reported year.
- How is the national decile for Quincy calculated?
- Quincy's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Illinois state decile calculated?
- Same calculation restricted to Illinois cities with population ≥ 10,000.
- How do decile scores convert to a letter grade?
- 1–3 = A · 4–5 = B · 6–7 = C · 8 = D · 9–10 = F.
- How often is the Quincy Crime Grade refreshed?
- Twice a year. The FBI typically releases the prior year's full data each September.
- What are the limits of this Crime Grade?
- The FBI relies on local agency reporting. Rates reflect what was reported, not what occurred.
Nearby cities in Illinois
Comparable Illinois cities by population.
Compare Quincy to other places
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