Colorado Records 96.9 Underweight Newborns per 1,000 Live Births, 13% Above Average

Bar chart showing highest low birth weight rates by state, Mississippi leads with 126.1 rate

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Key Findings

  • Colorado ranks 7th nationally with 96.9 low birth weight deliveries per 1,000 live births, 13% above the national average of 85.6.
  • Colorado records 6,080 underweight births annually from approximately 62,715 live births, exceeding the top-10 group average of 5,156.
  • Colorado is the highest-risk Mountain West state by rate and the only non-Southern state in the national top seven.

Colorado breaks the pattern. No Deep South roots, no Appalachian poverty, yet 7th in the nation, the highest-risk state in the entire Mountain West. With 6,080 underweight newborns annually, it ranks third in volume among the top ten. If fear of enforcement is keeping immigrant mothers from prenatal care, Colorado’s numbers suggest the cost is already being paid.

The study conducted by Birth Injury Lawyers Group analyzed CDC WONDER Natality data from 2022 to 2024. Low birth weight rates were calculated per 1,000 live births for all 50 states, with Colorado analyzed individually for state-level risk assessment.

Colorado in National Context: Top 10 Highest-Risk States

Rank

State

Rate per 1,000

Annual LBW Deliveries

1

Mississippi

126.1

4,313

2

Louisiana

114.4

6,283

3

Georgia

103.3

13,008

4

Alabama

103.1

5,978

5

West Virginia

99.2

1,672

6

South Carolina

98.9

5,747

7

Colorado

96.9

6,080

8

New Mexico

95.9

2,042

9

Arkansas

94.9

3,357

10

Nevada

94.8

3,077

Colorado ranks 7th nationally, one of only three non-Southern states in the top ten, yet recording the third highest LBW volume among them. With 6,080 underweight deliveries annually, it outpaces states with larger birth populations. Forty-three states do better. Colorado’s crisis isn’t a Southern inheritance, which makes it harder to explain, and harder to excuse.

Colorado: 7th Highest-Risk State in America

Metric

Colorado

National Average / Benchmark

LBW Rate per 1,000 Live Births

96.9

85.6 (National Avg.)

National Rank

7th (7th Highest Risk)

N/A

Annual LBW Deliveries

6,080

5,156 (Top 10 Avg.)

Annual Live Births

62,715

3,623,041 (U.S. Total)

Gap vs. Safest State (NH, 67.2)

+29.8 per 1,000 (44% higher)

New Hampshire: 67.2

Gap vs. National Average

+11.3 per 1,000 (13% above avg.)

85.6 per 1,000

Colorado’s 96.9 per 1,000 sits 13% above the national average and 44% above the safest state, a number that challenges the state’s progressive health reputation. With 6,080 underweight newborns annually, Colorado ranks third in volume among the top ten, a burden that demands explanation beyond geography.

Colorado vs. Mountain West Peers

Winding road leading to snow-capped mountains under cloudy sky in remote landscape

State

LBW Rate per 1,000

National Rank

Colorado

96.9

7th

New Mexico

95.9

8th

Nevada

94.8

10th

Wyoming

94.0

11th

Arizona

79.0

32nd

Montana

76.4

38th

Utah

74.0

40th

Idaho

70.1

47th

Mountain West Avg. (8 States)

84.8

Varied

Among Mountain West states, which average 84.8 low birth weight deliveries per 1,000 live births, Colorado stands 14% above even this regional benchmark and leads all eight Mountain West states by rate. New Mexico ranks second in the region at 95.9 per 1,000, but Colorado’s 96.9 outpaces it by a full 1.0 point, and four Mountain West states sit below the national average entirely. Colorado’s dominance within its own region, combined with its national top-10 ranking, makes it an outlier that demands specific attention rather than regional generalization.

Colorado vs. America’s Safest States

State

LBW Rate per 1,000

National Rank

Colorado (7th Highest Risk)

96.9

7th

New Hampshire (Safest)

67.2

50th

Alaska

68.5

49th

Washington

69.5

48th

Idaho

70.1

47th

Oregon

70.8

46th

North Dakota

70.9

45th

South Dakota

71.8

44th

Minnesota

72.9

43rd

Vermont

73.1

42nd

Iowa

73.6

41st

Safe-State Average (Bottom 10)

70.8

41st to 50th

The safest states average 70.8, Colorado is 37% above them. For a high-income state with a large immigrant population, 1 in every 10.3 births arriving underweight points to something beyond economics: cost, language, and fear may be keeping mothers from the care that neighboring states have made routine.

Colorado at a Glance: Summary Statistics

Metric

Value

Colorado LBW Rate per 1,000 Live Births

96.9

Colorado National Rank

7th (7th Highest in the U.S.)

Annual LBW Deliveries in Colorado

6,080

Annual Live Births in Colorado

62,715

Gap Above National Average (85.6)

13% above national average

Gap vs. Safest State (New Hampshire)

44% higher than New Hampshire

Mountain West Regional Average

84.8 per 1,000

Colorado vs. Mountain West Average

14% above Mountain West avg.

Every benchmark surprises: 7th nationally, 13% above average, 44% above the safest state, 14% above its own regional peers. One in every 10.3 Colorado babies born underweight, in a state that shouldn’t rank here. Geography and poverty don’t fully explain it, which means the possibility that enforcement fear is eroding prenatal care among immigrant communities is one Colorado’s public health leaders can no longer set aside.

Methodology

Data sourced from the CDC WONDER Natality Database using three-year averages (2022 to 2024) for reliable Colorado-specific estimates. Low birth weight is defined as under 2,500 grams (5.5 pounds) per CDC and WHO standards, with rates expressed per 1,000 live births. Colorado figures reflect state-level tabulation only. Regional and national averages are included for benchmarking. Rankings cover all 50 states (1 = highest risk). This analysis does not establish causation; maternal age, socioeconomic status, prenatal care access, and demographic factors may contribute to observed disparities.

Data Sources

Average annual live births 2022-2024: http://wonder.cdc.gov/controller/saved/D149/D475F179

Average annual deliveries with low birth weight 2022-2024:

http://wonder.cdc.gov/controller/saved/D149/D475F178

Research Dataset: https://docs.google.com/spreadsheets/d/1L49_O9ys2HbAPKRSarFMPbuZKF-P-61_1XuKbWk6fa8/edit?gid=0#gid=0

Study by: https://www.birthinjurylawyer.com

About Birth Injury Lawyers Group

Birth Injury Lawyers Group is a national law firm providing legal representation to families affected by preventable birth injuries. The firm advocates for improved maternal and infant health outcomes through data-driven research, public awareness initiatives, and dedicated legal support for families navigating the aftermath of birth-related complications.

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