Breath Alcohol

Iowa Department of Public Safety Division of Criminal Investigation

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Statistics for Iowa County

Previous Six Months

Month	Year	Average Alcohol Level (g/210L)	Number of Tests
December	2024	0.105	3
November	2024	0.138	8
October	2024	0.075	9
September	2024	0.141	7
August	2024	0.111	5
July	2024	0.151	3
		Total:	35

Year to Date

Year	Average Alcohol Level (g/210L)	Number of Tests
2024	0.125	65
2023	0.133	70
2022	0.156	64
2021	0.151	57
2020	0.174	49
2019	0.148	49
2018	0.148	54
2017	0.164	57
2016	0.158	47
2015	0.142	66
2014	0.156	76
2013	0.153	59
2012	0.148	69
2011	0.138	68
2010	0.139	23

DataMaster CDM Historical Data *

Year	Average Alcohol Level (g/210L)	Number of Tests
2010	0.151	21
2009	0.150	118
2008	0.135	98
2007	0.131	129
2006	0.148	134
2005	0.151	101
2004	0.148	119
2003	0.144	124
2002	0.152	117
	Total:	961

* The DataMaster CDM in use in Iowa from 1999 until 2011 was capable of limited data collection. This section of the website allows users to view the approximate number of tests and the average alcohol concentration of the subject for each county from 2002–2010.

This data is limited to the DataMaster CDM only. Please note, that the data may not be complete. The DataMaster CDM was capable of only holding approximately 175 tests at a time and there were situations that the memory was full and would no longer store tests until it was downloaded. Also, data may have been lost, never stored or cleared from memory prior to a download taking place.

The statistical data includes several subject tests that may have been performed by officers as "practice" and suspects that may have been impaired by substances other than alcohol therefore resulting in a zero breath alcohol result. Eliminating any test that was below 0.010 g/210 L, the statewide average over the past decade has been around 0.147 g/210 L.

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