United States · Infant Mortality, Under Age 1 (WHO)

5.52024

Unit: per 1,000 live births. Publisher measure: Infant mortality rate (probability of dying between birth and age 1 per 1000 live births).

Infant mortality probability before the first birthday (age 0–11 months), both sexes, expressed per 1,000 live births under reference-year mortality conditions.

Measurement basis: UN Inter-agency Group for Child Mortality Estimation (UN IGME) modelled or adjusted mortality probabilities/rates, disseminated by WHO.

Reference-period cadence: annual.

Source update cadence: annual. This does not establish a publication date for an individual reading.

Displayed values are rounded, with extra precision when needed to keep a positive estimate positive. Downloads retain the full numeric estimate and the publisher's original display text separately.

A “<” sign means strictly below the stated number. Numeric readings and uncertainty endpoints keep their own comparison signs. A number without a sign does not establish certainty or an observed outcome.

World Health Organization (Global Health Observatory); retrieved 2026-09-07. Retrieval time is separate from an official publisher release vintage.

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One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.

History and uncertainty

Charts plot numeric readings. Reported upper bounds create gaps; their values, uncertainty endpoints and source notes remain available in the table and downloads.

Reported estimates and uncertainty · 76 rows

Each comparison sign applies to its own reading or uncertainty endpoint. Values retain source precision. “Not reported” identifies an absent reading or uncertainty endpoint in this source capture.

Reported estimates and independently qualified uncertainty endpoints
CountryYearReadingLower endpointUpper endpointPublisher note
United States194933.22984995831.89791759634.660903387
United States195032.34966172731.43354763933.328637565
United States195131.49782364830.83074057332.1787051
United States195230.66070126630.11247094931.214205288
United States195329.85580952129.35262083130.364037297
United States195429.10725049528.60265504329.607888273
United States195528.4431804327.95466479828.921027419
United States195627.86282687427.38904972128.327715665
United States195727.34771607826.8864777827.805551282
United States195826.87398544526.43679055627.315830386
United States195926.41439027325.98055502526.850465873
United States196025.94463995725.51447218726.363959836
United States196125.45967189625.0391646325.869328664
United States196224.96102036924.53981944625.368755196
United States196324.44871294324.04969164224.848960749
United States196423.9137793923.52504649224.319667269
United States196523.34693731422.97298180123.742048873
United States196622.7409746222.37632259923.123292138
United States196722.09628998121.74872002522.465129814
United States196821.41332992621.06990586421.75818018
United States196920.68690012120.35474874821.030828602
United States197019.92543387819.60599092820.254749925
United States197119.13654514118.831402219.45190888
United States197218.33590663618.03347014518.647301879
United States197317.52818700917.24533700417.821403927
United States197416.72717025616.45337560817.011369662
United States197515.93598768515.68147056816.203162407
United States197615.17367251314.92689700415.421683745
United States197714.44793399714.21314889914.688263063
United States197813.77198871613.54781290713.999127432
United States197913.14915544812.92937476613.366248144
United States198012.58016987712.36280901712.785660499
United States198112.06680510411.8599181712.264650689
United States198211.61267773211.4137884911.810934967
United States198311.22512781411.03427140411.414024225
United States198410.89521602210.70940033211.079112444
United States198510.61321763910.43840876310.788908758
United States198610.36754172810.20126833810.538204066
United States198710.1381897519.97196149510.313263206
United States19889.9057636729.74335978710.080738471
United States19899.6552593749.4922204069.832944741
United States19909.3773052139.2169015589.550808859
United States19919.078619948.9260841489.241169749
United States19928.7697301118.6246181628.92083895
United States19938.46450118.3278737388.604866883
United States19948.1762533948.0407201528.310089044
United States19957.9174292167.784243658.047313422
United States19967.691181047.5596975297.818231972
United States19977.5009540387.3705949617.628205595
United States19987.3477167827.2226816197.470612394
United States19997.2224122817.1003155127.342535634
United States20007.1181515127.002953657.23530679
United States20017.031995816.9172150967.147532129
United States20026.9604044556.8466635317.074434737
United States20036.8969431276.7852838077.008599928
United States20046.8341429716.7240405286.94817543
United States20056.7648718526.6553399336.880547106
United States20066.682907126.5747723266.799995849
United States20076.586609196.4796601076.702115343
United States20086.4746062166.3737119856.579782503
United States20096.3535189546.2603580856.448273398
United States20106.2320690456.1455864236.31719743
United States20116.1144235766.0347744556.194987752
United States20126.0090360055.9300328616.087933271
United States20135.9167573715.8386372125.993353293
United States20145.8343514855.752939175.915456578
United States20155.759006685.6740522645.844567161
United States20165.6892281395.6008507035.77897283
United States20175.6248946875.5342936925.716951916
United States20185.5673587445.4725643515.660171382
United States20195.5237896945.426439055.619146973
United States20205.4980378235.4017623045.592459087
United States20215.4890548945.3918539955.58663512
United States20225.4907540355.3753059885.60895597
United States20235.4935715675.3375630495.653023424
United States20245.4821709845.2598133245.714976035

One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.