Acorn Postcode-Level Directory for the United Kingdom, 2025

<p>The Acorn geodemographic classification is a long-running classification developed by CACI Limited. Acorn operates by merging geography with demographics and details about consumer characteristics and behaviours. Supported by advanced AI methods, comprehensive input data, and detailed product literature, Acorn provides precise information and enables an in-depth understanding of the different types of consumers in every part of the country.
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<p>The current classification groups the entire United Kingdom population into 7 categories, 22 groups and 65 types. The data is available at unit postcode level. Further information may be found on the CACI
<a href="http://acorn.caci.co.uk/" title="ACORN">ACORN</a> microsite.</p><p>Use of the data requires approval from the data owner or their nominee and is restricted to those based at a Higher Education or Further Education institution. Please see the Data Access section for further information. </p><p><span style="font-weight: bold;">Latest edition information</span></p><p>For the third edition (December 2025) the data file for 2025 has been added to the study. </p><p>These data are available in CSV, SPSS, Stata and tab-delimited formats. CSV users should note that the CSV file is too large for Excel to open fully.</p>

Acorn地理人口分类系统（Acorn geodemographic classification）是由CACI有限公司（CACI Limited）开发的长期运行的分类体系。该系统将地理信息与人口统计数据、消费者特征及行为细节相结合。依托先进的人工智能方法、全面的输入数据与详实的产品文档，Acorn能够提供精准的信息，助力人们深入了解英国各地不同类型的消费者。
当前的分类体系将全英国人口划分为7大类、22个组别以及65个细分类型。该数据可获取至单位邮政编码层级。更多相关信息可访问CACI的ACORN专属子站点：http://acorn.caci.co.uk/。
使用该数据需获得数据所有者或其授权代表的许可，且仅限高等教育或继续教育机构的人员使用。更多详情请参阅“数据获取”章节。
**最新版本信息**
本次第三版（2025年12月发布）已将2025年数据文件加入本研究数据集。
此类数据支持CSV、SPSS、Stata以及制表符分隔格式。使用CSV格式的用户需注意，该CSV文件体积过大，无法通过Excel完全打开。