diff --git a/l10n_fr_department_state/__init__.py b/l10n_fr_department_state/__init__.py
new file mode 100644
index 0000000..a0fdc10
--- /dev/null
+++ b/l10n_fr_department_state/__init__.py
@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+from . import models
diff --git a/l10n_fr_department_state/__manifest__.py b/l10n_fr_department_state/__manifest__.py
new file mode 100644
index 0000000..f253b0f
--- /dev/null
+++ b/l10n_fr_department_state/__manifest__.py
@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
+{
+    "name": "Partner department state",
+    "version": "1.0.0",
+    "summary": "Get state from department (FR)",
+    "description": "",
+    "author": "RemiFr82",
+    "contributors": "",
+    "maintainer": "RemiFr82",
+    "website": "https://remifr82.me",
+    "license": "LGPL-3",
+    "category": "",
+    # "price": 0,
+    # "currency": "EUR",
+    "application": False,
+    "installable": True,
+    "auto_install": False,
+    # "pre_init_hook": "",
+    # "post_init_hook": "",
+    # "uninstall_hook": "",
+    # "excludes": [],
+    # "external_dependencies": [],
+    "depends": [
+        "l10n_fr_department",
+    ],
+    "data": [
+        # Views
+        "views/res_partner.xml",
+    ],
+    # "assets": [],
+    # "css": [],
+    # "images": [],
+    # "js": [],
+    # "test": [],
+    # "demo": [],
+}
diff --git a/l10n_fr_department_state/i18n/fr.po b/l10n_fr_department_state/i18n/fr.po
new file mode 100644
index 0000000..4c8e5a2
--- /dev/null
+++ b/l10n_fr_department_state/i18n/fr.po
@@ -0,0 +1,27 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* l10n_fr_department_state
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0-20230613\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2024-05-26 14:23+0000\n"
+"PO-Revision-Date: 2024-05-26 14:23+0000\n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: l10n_fr_department_state
+#: model:ir.model,name:l10n_fr_department_state.model_res_partner
+msgid "Contact"
+msgstr ""
+
+#. module: l10n_fr_department_state
+#: model:ir.model.fields,field_description:l10n_fr_department_state.field_res_partner__state_id
+#: model:ir.model.fields,field_description:l10n_fr_department_state.field_res_users__state_id
+msgid "State"
+msgstr "Région"
diff --git a/l10n_fr_department_state/models/__init__.py b/l10n_fr_department_state/models/__init__.py
new file mode 100644
index 0000000..0fbdfcf
--- /dev/null
+++ b/l10n_fr_department_state/models/__init__.py
@@ -0,0 +1,2 @@
+# -*- coding: utf-8 -*-
+from . import res_partner
diff --git a/l10n_fr_department_state/models/res_partner.py b/l10n_fr_department_state/models/res_partner.py
new file mode 100644
index 0000000..50e4c13
--- /dev/null
+++ b/l10n_fr_department_state/models/res_partner.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+import logging
+from odoo import models, fields, api, tools
+
+_logger = logging.getLogger(__name__)
+
+
+class ResPartner(models.Model):
+    _inherit = "res.partner"
+
+    state_id = fields.Many2one(
+        compute="_compute_country_depatemnt",
+        store=True,
+    )
+
+    @api.depends("country_department_id")
+    def _compute_country_depatemnt(self):
+        for partner in self:
+            dept = partner.country_department_id
+            dept_stat = dept.state_id
+            if dept and dept_stat and not partner.state_id:
+                partner.state_id = dept_stat
diff --git a/l10n_fr_department_state/views/res_partner.xml b/l10n_fr_department_state/views/res_partner.xml
new file mode 100644
index 0000000..63ba0a3
--- /dev/null
+++ b/l10n_fr_department_state/views/res_partner.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+  <record id="view_partner_form_inherit_base" model="ir.ui.view">
+    <field name="name">res.partner.view.form.inherit</field>
+    <field name="model">res.partner</field>
+    <field name="inherit_id" ref="base.view_partner_form" />
+    <field name="arch" type="xml">
+      <field name="state_id" position="attributes">
+        <attribute name="attrs">{'readonly':[('country_department_id','!=',False)]}</attribute>
+        <attribute name="options">{'no_open':1}</attribute>
+      </field>
+      <field name="country_department_id" position="attributes">
+        <attribute name="options">{'no_open':1}</attribute>
+      </field>
+    </field>
+  </record>
+
+</odoo>
\ No newline at end of file