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目的:调查河北省所有县（市、区，以下简称县）居民生活饮用水碘含量，明确河北省水碘分布特征和水源性高碘地区的分布范围。方法:2017年，在河北省所有县，以乡（镇、街道办事处，以下简称乡）为单位，根据不同供水方式采集水样检测碘含量；在水碘中位数≥10 μg/L的乡，以村（居委会，以下简称村）为单位采集水样检测碘含量。结果:共对168个县的2 199个乡进行水碘调查，乡水碘中位数范围为0.0 ~ 1 113.7 μg/L。其中1 579个乡水碘中位数< 10 μg/L，占总体的71.81%；≥10 μg/L的乡有620个。水碘中位数≥10 μg/L的乡含监测村数17 930个，其中水碘< 10 μg/L的村有2 312个（12.89%），≥100 μg/L的村有6 104个（34.04%），≥300 μg/L的村有1 577个（8.80%）。高碘水源主要分布在沧州、邯郸、邢台、衡水和廊坊5个市的39个县中，呈片状或点状分布。结论:水源性高碘地区在河北省分布范围广泛，呈片状或点状分布。“,”Objective:To master the iodine content of drinking water in all counties (cities, districts) and clarify the distribution characteristics of water iodine and the distribution range of water-borne high iodine areas in Hebei Province.Methods:In all counties (cities, districts) of Hebei Province, water samples in townships (towns, street office, hereinafter referred township) were collected according to different water supply methods to detect iodine content in 2017; in townships with a median of water iodine ≥10 μg/L, the administrative village (neighborhood committee, hereinafter referred village) was used as a unit to collect water sample to detect iodine content.Results:A total of 2 199 townships in 168 counties (cities, districts) were surveyed for water iodine. The median range of water iodine of the townships was 0.0 - 1 113.7 μg/L. The median of water iodine in 1 579 townships was < 10 μg/L, accounting for 71.81% of the total; the number of townships with water iodine of 10 μg/L or more was 620. The village water iodine survey was carried out in the townships with water iodine of 10 μg/L or more, the number of villages monitored was 17 930. The number of villages with a median of water iodine of less than 10 μg/L was 2 312 (12.89%), and there were 6 104 villages with water iodine of 100 μg/L or more, accounting for 34.04%. The number of villages with median of water iodine ≥300 μg/L was 1 577 (8.80%). The water-borne high iodine areas in Hebei Province were distributed in 39 counties (cities, districts) of five cities, namely, Cangzhou, Handan, Xingtai, Hengshui and Langfang. They were mainly distributed in sheet shape or spot shape.Conclusion:The water-borne high iodine areas in Hebei Province are widely distributed, in the form of sheet or spot.