Locations
Maine
Statistics on children, youth and families in Maine from the Annie E. Casey Foundation and the Maine Children's Alliance
Why This Indicator Matters
Babies born before 37 weeks are more likely to have health problems and often need to stay in the hospital longer than babies born later. There can be a greater likelihood of intellectual delays and behavioral health issues such as Autism and neurological issues such as cerebral palsy. Finding and treating health problems as early as possible — and preventing premature birth overall — can help babies lead longer, healthier lives. March of Dimes- preterm birth health issues
Approximately 10.4% of all 2024 births in the US were premature compared to 9.7% in Maine.
In both United States and in Maine, preterm births spiked in 2021, with the highest rates in 15 years and 2022 is almost as high. In the United States for 2022-2024, the preterm birth rate among black women is 14.7%, higher than the rate among all other women.
March of Dimes Preterm Birth Rates
In Maine, the percent of preterm births has been on a upward trend since 2012. This trend of recent increases mirrors national data. The 2025 rate in Maine was 9.6%, higher than 8.9% in 2020 and 8.1% in 2017.
For 2025, the counties with the highest rate of preterm births as a percentage of all births were: Sagadahoc (12.2%), Oxford (11.2%), Penobscot (11.1%), and Kennebec (11%), while the counties with rates of preterm births under 8.0% were: Hancock (7.0%), Washington (7.1%), and Franklin (7.3%).
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Approximately 10.4% of all 2024 births in the US were premature compared to 9.7% in Maine.
In both United States and in Maine, preterm births spiked in 2021, with the highest rates in 15 years and 2022 is almost as high. In the United States for 2022-2024, the preterm birth rate among black women is 14.7%, higher than the rate among all other women.
March of Dimes Preterm Birth Rates
In Maine, the percent of preterm births has been on a upward trend since 2012. This trend of recent increases mirrors national data. The 2025 rate in Maine was 9.6%, higher than 8.9% in 2020 and 8.1% in 2017.
For 2025, the counties with the highest rate of preterm births as a percentage of all births were: Sagadahoc (12.2%), Oxford (11.2%), Penobscot (11.1%), and Kennebec (11%), while the counties with rates of preterm births under 8.0% were: Hancock (7.0%), Washington (7.1%), and Franklin (7.3%).
Definition and Source
PROVIDER
Definition
The number and percent of live births in which the newborn was born at less than 37 weeks gestation.
The numerator is the number of live births with 37 or less weeks of gestation and the denominator is all live births.
The numerator is the number of live births with 37 or less weeks of gestation and the denominator is all live births.
Data Source
Maine Department of Health and Human Services, Office of Data, Research and Vital Statistics.
2025 Data Uploaded 8/27/2026
2025 Data Uploaded 8/27/2026
Notes
Footnotes:
NA=Not available
* = Numbers are suppressed due to low numbers.
State-level data available back to 1990. County-level data not available for all years prior to 2009.
Note that the state totals include any preterm births where the county is not known.
NA=Not available
* = Numbers are suppressed due to low numbers.
State-level data available back to 1990. County-level data not available for all years prior to 2009.
Note that the state totals include any preterm births where the county is not known.
Last Updated
August 2026