Postcodes NL

Dutch postcodes in CSV format (7zip) and MySQL import script to allow for address validation in the Netherlands.

Check out the latest release.

Files

The release contains the following files:

• postcodes-nl.7z: Dataset in CSV format with 7zip compression
• postcodes-nl.php: Script to load the CSV into a MySQL database
• postcodes-nl.sh: Script to unpack the 7zip archive and run PHP

NB: The CSV dataset is 341MB but with 7zip compression it is reduced to 15MB.

Running

Configure your database in postcodes-nl.php and run using:

bash postcodes-nl.sh

To run you need:

sudo apt install 7zip php-cli php-mysql

This assumes you are using a Debian based Linux distribution.

Releasing

Release using:

bash release.sh

To release you need:

sudo apt install 7zip wget php-cli gh

This uses the Github CLI on Debian Linux.

Sample data

Here are the first 3 records of the 24.04 release in CSV format:

straat,huisnummer,huisletter,huistoevoeging,woonplaats,postcode
"De Ruijterkade",99,,,Amsterdam,1011AB
"De Ruijterkade",105,,1,Amsterdam,1011AB
"De Ruijterkade",105,,2,Amsterdam,1011AB

Here is the SQL for those 3 records (including the table structure):

CREATE TABLE `postcodes` (
`straat` varchar(255) DEFAULT NULL,
`huisnummer` varchar(255) DEFAULT NULL,
`huisletter` varchar(255) DEFAULT NULL,
`huistoevoeging` varchar(255) DEFAULT NULL,
`woonplaats` varchar(255) DEFAULT NULL,
`postcode` varchar(255) DEFAULT NULL,
KEY `postcode` (`postcode`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;

INSERT INTO `postcodes` (`straat`, `huisnummer`, `huisletter`, `huistoevoeging`, `woonplaats`, `postcode`) VALUES
('De Ruijterkade',	'99',	NULL,	NULL,	'Amsterdam',	'1011AB'),
('De Ruijterkade',	'105',	NULL,	'1',	'Amsterdam',	'1011AB'),
('De Ruijterkade',	'105',	NULL,	'2',	'Amsterdam',	'1011AB');

NB: The 24.04 release has 9771442 records.

Credits

This project loads the smallest dataset from:

• github.com/mevdschee/bagconv-docker

Which is a fork of:

• github.com/berthubert/bagconv

See also this blog post by Bert Hubert.