Public health agency for Snohomish County
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Health Data & Reports
Data on health are used to educate and inform others about the magnitude, trends, or changes occurring in a multitude of health measures. The epidemiology of person, time, and place assists the community in determining how, where, and when health threats are occurring. Data help prioritize needs, mobilize communities, garner resources, plan programs and activities, and develop policies to improve health. In times of shrinking resources, it is essential to be data smart in order to evaluate both current needs and plan for the future.
Data Resources
Health Statistics & Assessment (HSA) has a repository of more than 20 health databases. Examples of health data include:
  • Vital Statistics - births, deaths, abortions, fetal death
  • Health Surveys - adult and youth risk factors and behaviors, pregnant mothers, oral health
  • Other Surveys - census, health provider shortage areas for primary care and dental providers
  • Other - hospitalizations, cancer, communicable diseases
Data Requests
HSA completes data requests related to public health for the Health District and external agencies and individuals. Examples of analysis include the following: Snohomish County rates, proportions, demographics, trends, and comparisons. Specific examples include Snohomish County rates of low birth weight compared with the rates of Washington State, the prevalence of obesity for different age groups, etc.
Presentations can be requested for specific topics about data, reports, or publications.
Quarterly Epi News and Reports is published by Health Statistics and Assessment.
2010 - 3rd & 4th Quarter (9.1.4)
Safe Routes to School & Healthy Retail Stores. ALERT: All Snohomish County Health Care Providers.
2010 - 2nd Quarter (9.1.4)
Topics: Multiple Drug Resistant Tuberculosis in Snohomish County. Revised Health Planning Areas.
2010 - 1st Quarter (9.1.4)
Topics: Human Rabies Prevention. Snohomish County Alliance for Health Care Access.
2009 - 4th Quarter (9.1.4)
Snohomish County Partnership for Secure Medicine Disposal; H1N1 in Snohomish County - Update.
2009 - 3rd Quarter (9.1.4)
Unintentional Poisoning Deaths in Snohomish County: Opioids Most Common Cause and H1N1 in Snohomish County
2009 - 2nd Quarter (9.1.4)
Increased Number of Enteric Conditions During Summer Months
2009 - 1st Quarter (9.1.4)
Topics: Just Released - Signals 2: Public Health Indicators for Snohomish County and Plans for Alternate Care Facilities (ACF)
2008 - 4th Quarter (9.1.4)
Topics: Demographic distribution of obesity and related diseases and Varicella outbreak in two elementary schools
2008 - 3rd Quarter (9.1.4)
Topics: The Valuable VPD Program and The Continuing Crisis with Access to Prenatal Care
2008 - 2nd Quarter (9.1.4)
Topics: Special Edition – Notifiable Conditions and the Healthcare Provider
2008 - 1st Quarter (9.1.4)
Topics: Access to Health Care in Snohomish County and Providers Need to Work with Child Care Facilities and Parents to Create an Individual Plan of Care
2007 - 4th Quarter (9.1.4)
Topics: An Increase in Listeriosis Cases and Snohomish Health District Expands STD Intervention
2007 - 3rd Quarter (9.1.4)
Topics: Healthy Communities in Snohomish County and Washington WIC Nutrition Program Reduces Very Premature and Very Low Birth Weight Births
2007 - 2nd Quarter (9.1.4)
Topics: How Big Are We? and TB in Snohomish County
2007 - 1st Quarter (9.1.4)
Topics: Pandemic Influenza: Planning for the Future and How Big Are We? A Health Data Report Soon to be Released
2006 - 4th Quarter (9.1.4)
Topics: Avian (H5N1) Influenza Status and Recommendations for Testing of Possible Human Cases
2006 - 3rd Quarter (9.1.4)
Topics: 'Whooping' it up in Snohomish County and Sno Co PRAMS data now available!
2006 - 2nd Quarter (9.1.4)
Topics: Rabies Prevention in Snohomish County and West Nile Virus Season Approaches
2006 - 1st Quarter (9.1.4)
Topics: Gonorrhea Increases in Snohomish County and Signals: Public Health Indicators
2005 - 4th Quarter (9.1.4)
Topics: H5N1 Testing for Clinicians and Methamphetamines and Tuberculosis: A Growing Concern
2005 - 3rd Quarter (9.1.4)
Topics: Tuberculosis in Snohomish County and The Health of Snohomish County Youth: 2002 Report Available
2005 - 2nd Quarter (9.1.4)
Topics: Vaccination for Meningococcal Disease, New Pertussis Vaccines and Healthy Youth in Snohomish County: An Overview
2005 - 1st Quarter (9.1.4)
Topics: Mobilizing for a Mre Active & Healthier Snohomish County, West Nile Season Approaches and Changes to the Notifiable Conditions List
2004 - 4th Quarter (9.1.4)
Topics: Flood Sanitation, BRFSS Highlights and Reportable Communicable Diseases
2004 - 3rd Quarter (9.1.4)
Topics: Influenza: Protect Yourself, Protect Your Patients and Increasing Premature Births
Quick Facts and Statistics
HSA provides one-page data sheets with graphs and trends for commonly requested information.
Cancer Incidence
The top ten causes of new (incident) cancer cases in Snohomish County are presented below. Trends and comparisons with Washington State are presented for the five most common cancer sites, and to the most recently available national data. [ Source: Cancer Data Source ]
Communicable Disease
Notifiable Conditions in Washington State WAC 246-101. [ Source: Communicable Disease Data Source ]
Enteric Diseases
Sexually Transmitted Diseases
Other Diseases
Communicable Disease Report
Maternal & Child Health
Pregnancy Outcomes
Pregnancy outcomes include the rate of low birth weight (for singleton births), preterm births and multiple births. Snohomish County rates are compared with the Washington State rate and to the most recently available national data.
Pregnancy Risk Factors
Pregnancy risk factors, including smoking during pregnancy and early initiation of prenatal care, are presented in the data sheets below. Snohomish County values are compared with Washington State and to the most recently available national data.
Fertility Rates
Data sheets for the crude birth rate, the teen birth rate and the general fertility rate are presented in the documents below. The crude birth rate is the number of births per 1000 population. The teen birth rate is the number of births to women 15-17 per 1000 women 15-17 years old. The general fertility rate is the number of births to women of all ages per 1000 women in the population of age 15-44. Snohomish County values are compared with Washington State and to the most recently available national data.
[ Source: Mortality Data Source ]
Leading Causes of Death in Snohomish County (2007)
The leading causes of death by age group and the trends in all-cause mortality.
Top Ten Causes of Death in Snohomish County
The National Center for Health Statistics (NCHS) classifies the leading causes of death in the United States. The ten leading causes of death in Snohomish County are presented in the documents below. For each data sheet, the age-adjusted death rates for Snohomish County and Washington State are presented. Significant trends and differences between the county- and statewide-rate are identified. Comparisons are also made with the most recently available national data. Data for all cause mortality is also presented.
Other Notable Causes of Death
In addition to the top ten leading causes of death, are a series of data sheets for diseases of public health importance. Some of these causes of death are included in the broader categories above. For example, lung, colon, prostate and breast cancer are included in the overall cancer rate and motor vehicle collisions are included in the unintentional injury rate. For each data sheet, the age-adjusted death rates for Snohomish County and Washington State are presented. Significant trends and differences between the county- and statewide-rate are identified. Comparisons are also made with the most recently available national data.
Infant Mortality
Infant mortality is the death of an infant during the first 365 days of life. The infant mortality data sheet presents the infant mortality rate in Washington State and Snohomish County. Rates of neonatal (within 28 days) and post neonatal (28-365) deaths are presented. Deaths due to sudden infant death syndrome (SIDS) are also presented.
Overweight and Obesity
Latest population change data is presented below. In addition, data sheets are presented showing the most recent population data by sex and age and by race and ethnicity.
Tobacco Use
Publications and Reports
HSA produces a variety of data-based and topic-specific reports about Snohomish County populations.
Recent Publications
List of Recent Publications and Reports:
Public Health Indicators of Snohomish County
List of Public Health Indicators of Snohomish County:
General Population
List of General Population Publications and Reports:
Maternal And Child Health
List of Maternal And Child Health Publications and Reports:
List of Youth Health Publications and Reports:
List of Adult Health Publications and Reports:

Last Reviewed and updated 3/21/2013