Group A incident records
781Distinct administrative records with usable offense segments.2026 · city & agency research
Mason City, IA
Crime statistics reported by MASON CITY POLICE DEPARTMENT.
Preliminary reported countsSource snapshot Sep 15, 2026
Know what these figures cover.
These are the reporting agency’s records, not a guaranteed total for the whole city, a ZIP Code, or a radius around a home. Month completeness and agency jurisdiction have not been independently verified. Missing or unverified reports are not zero crime. This is not a safety rating.
Year overview
2026 overview
View the available months below. This snapshot does not establish full-year coverage.
Return A · monthly summary
Every month. Including the gaps.
7 months have usable source counts. This does not establish full-month or full-year coverage.
| 2026 period | Source status | Murder | Rape | Robbery | Aggravated assault | Burglary | Larceny-theft | Motor vehicle theft |
|---|---|---|---|---|---|---|---|---|
| January | Reported · preliminary | 0 | 2 | 1 | 3 | 8 | 38 | 4 |
| February | Reported · preliminary | 0 | 3 | 0 | 2 | 7 | 25 | 1 |
| March | Reported · preliminary | 0 | 1 | 1 | 3 | 10 | 44 | 3 |
| April | Reported · preliminary | 0 | 5 | 0 | 3 | 9 | 36 | 0 |
| May | Reported · preliminary | 0 | 1 | 2 | 4 | 7 | 30 | 0 |
| June | Reported · preliminary | 1 | 0 | 1 | 6 | 2 | 31 | 4 |
| July | Reported · preliminary | 0 | 0 | 0 | 4 | 8 | 35 | 0 |
| August | Unavailable | — | — | — | — | — | — | — |
| September | Unavailable | — | — | — | — | — | — | — |
| October | Unavailable | — | — | — | — | — | — | — |
| November | Unavailable | — | — | — | — | — | — | — |
| December | Unavailable | — | — | — | — | — | — | — |
NIBRS · incident-based reporting record
Months represented in the extract
Separate from Return A: these incident and offense records must not be added to the table above. Missing rows are not zero crime.
| 2026 period | Source status | Incident records | Offense records | Attempts | Residence / home |
|---|---|---|---|---|---|
| January | Observed records | 107 | 121 | 5 | 51 |
| February | Observed records | 105 | 115 | 3 | 50 |
| March | Observed records | 125 | 134 | 7 | 55 |
| April | Observed records | 126 | 139 | 4 | 50 |
| May | Observed records | 97 | 106 | 3 | 37 |
| June | Observed records | 113 | 124 | 2 | 44 |
| July | Observed records | 108 | 125 | 3 | 50 |
| August | Not represented | — | — | — | — |
| September | Not represented | — | — | — | — |
| October | Not represented | — | — | — | — |
| November | Not represented | — | — | — | — |
| December | Not represented | — | — | — | — |
A submission flag does not prove a complete month. September is a partial snapshot. Source snapshot September 15, 2026.
NIBRS · incident-based detail
A closer look at the records
2026 records in this snapshot · source snapshot September 15, 2026.
This is a separate incident-based source, not an addition to the Return A figures. Counts describe Group A incident and offense records represented in this extract, not victim-counted offense totals, all city crime, or a safety rating. Reporting completeness is unverified.
Offense records
864Completed and attempted offense segments. One incident can have several.Attempted offense records
27Recorded attempts, included in the offense-record count.Residence / home records
337Offense segments with a residence/home location type, not mapped addresses.Attempts are already included in offense records, not additional crimes. 7 months contain usable records. These are observed records, not a complete annual total. September is a partial snapshot. These core counts, offense categories, locations and time-of-day figures exclude Group B arrest records and unfounded offense segments.
Recorded offense categories Offense records, not victim counts
Negligent manslaughter1
Rape12
Criminal sexual contact (legacy fondling)3
Robbery5
Aggravated assault23
Simple assault124
Intimidation43
Burglary / breaking and entering50
Shoplifting106
Theft from a building57
Theft from a motor vehicle29
Theft of motor vehicle parts6
Other larceny47
Motor vehicle theft12
Counterfeiting / forgery4
False pretenses / swindle52
Credit card / ATM fraud7
Property destruction / damage / vandalism135
Drug / narcotic violations60
Drug equipment violations45
Pornography / obscene material2
Weapon law violations18
Extortion / blackmail3
Pocket-picking1
Purse-snatching1
Wire fraud1
Stolen property offenses3
Identity theft7
Murder / nonnegligent manslaughter1
Kidnapping / abduction4
Animal cruelty1
Impersonation1
Location types Offense records
Air / bus / train terminal1
Bar / nightclub8
Commercial / office building5
Convenience store22
Department / discount store89
Government / public building10
Grocery / supermarket25
Highway / road / alley122
Hotel / motel5
Parking lot / garage44
Rental storage facility17
Residence / home337
Restaurant4
Specialty store27
Other / unknown28
Shelter / mission / homeless5
Cyberspace27
Bank / savings and loan5
Church / synagogue / temple4
Drug store / doctor’s office / hospital14
Service / gas station7
Arena / stadium / fairgrounds1
School: elementary / secondary17
Shopping mall4
Liquor store4
Industrial site3
Auto dealership3
Park / playground14
School: college / university6
Construction site1
Camp / campground2
Jail / prison3
Reported substances Drug-type entries
Crack cocaine Not reported: Quantity unavailable · 1 unmeasured entries 1
Cocaine (other) Grams: 7.920 3
Marijuana Dosage units / items: 17.000Fluid ounces: 1.000Grams: 306.740Pounds: 4.800Not reported: Quantity unavailable · 10 unmeasured entries 67
Other narcotics Grams: 20.000 1
Amphetamines / methamphetamines Dosage units / items: 2.000Grams: 236.380 75
Barbiturates Grams: 0.500 1
Other drugs Dosage units / items: 1.000 1
Unknown type Not reported: Quantity unavailable · 2 unmeasured entries 2
Weapon / force types Offense-field entries
Firearm (unspecified)1
Handgun10
Knife / cutting instrument2
Blunt object4
Motor vehicle2
Personal weapons: hands / feet135
Fire / incendiary device1
Drugs / narcotics / sleeping pills1
Asphyxiation2
Other weapon / force12
Unknown weapon1
None / unarmed31
Time of day Incident records
00:00–05:5988
06:00–11:59204
12:00–17:59322
18:00–23:59167
Unknown / not supplied0
Source: U.S. law-enforcement reports · NIBRS 2026 dataset. Snapshot September 15, 2026. Full agency identity is retained internally; geographic jurisdiction remains unverified. Original records are preserved privately, not exposed in page HTML.
Source & interpretation
What’s behind the numbers
- Snapshot
- September 15, 2026 · imported October 4, 2026
- Measurement
- Monthly actual-offense counts reported by this agency. Not national estimates, arrests or geocoded incidents.
Aggravated assault is calculated as source assault total minus simple assault. Rape uses the source category; historical definitions require care. We do not annualize incomplete periods, generate crime rates from ZIP populations, or rank addresses by safety.
Explore nearby areas
More crime reports near Mason City
Explore city and agency reports linked to neighboring ZIP areas. Only reports with available data are shown.
Suggested from postal/locality names and ZIP areas that touch or lie within one mile of a linked ZIP boundary. This is not crime within a one-mile radius; each report covers its reporting agency, whose jurisdiction has not been independently verified. Postal matching adapted from GeoNames · CC BY 4.0.
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Address reports in Mason City
Explore what’s around these addresses, each on a different street.