diff --git a/lawrisk/api/auth.py b/lawrisk/api/auth.py
index 6c44a24..eaeff25 100644
--- a/lawrisk/api/auth.py
+++ b/lawrisk/api/auth.py
@@ -55,6 +55,7 @@ def _scrub_user_payload(user: Dict[str, Any]) -> Dict[str, Any]:
             "name": user.get("service_department_name"),
             "code": user.get("service_department_code"),
             "region_id": user.get("service_department_region_id"),
+            "region_name": user.get("service_department_region_name"),
             "parent_id": user.get("service_department_parent_id"),
             "phone": user.get("service_department_phone"),
             "role": user.get("department_role"),
diff --git a/lawrisk/api/v2.py b/lawrisk/api/v2.py
index 963a2e7..96dacdf 100644
--- a/lawrisk/api/v2.py
+++ b/lawrisk/api/v2.py
@@ -275,11 +275,23 @@ def admin_create_user():
         return jsonify({"success": False, "message": "用户名和密码均不能为空"}), 400
     parent_department_id = (payload.get("parent_department_id") or "").strip() or None
     service_department_id = (payload.get("service_department_id") or "").strip() or None
+    region_id = (payload.get("region_id") or "").strip() or None
     department_phone = (payload.get("department_phone") or "").strip() or None
 
     # 如果未显式绑定部门，则为该用户创建一个同名单位，并按父级决定层级
     created_department: Optional[Dict[str, Any]] = None
     if not service_department_id:
+        # 未显式指定区域时，继承父级部门的区域
+        if not region_id and parent_department_id:
+            try:
+                parent_dept = next(
+                    (dept for dept in list_service_departments() if str(dept.get("id")) == parent_department_id),
+                    None
+                )
+                if parent_dept:
+                    region_id = parent_dept.get("region_id")
+            except Exception:
+                region_id = None
         try:
             dept_name = (payload.get("display_name") or username).strip() or username
             dept_code = username.upper()
@@ -288,6 +300,7 @@ def admin_create_user():
                 code=dept_code,
                 phone=department_phone,
                 parent_id=parent_department_id,
+                region_id=region_id,
             )
             service_department_id = created_department.get("id")
         except Exception as exc:
@@ -303,6 +316,7 @@ def admin_create_user():
             service_department_id=service_department_id,
             department_role=payload.get("department_role"),
             parent_department_id=parent_department_id,
+            service_department_region_id=region_id,
             service_department_phone=department_phone,
         )
         return jsonify({"success": True, "data": {"user": user, "department": created_department}})
@@ -508,6 +522,16 @@ def admin_create_service_department():
         "description": payload.get("description"),
         "grade": grade,
     }
+    if not kwargs["region_id"] and kwargs["parent_id"]:
+        try:
+            parent_dept = next(
+                (dept for dept in list_service_departments() if str(dept.get("id")) == kwargs["parent_id"]),
+                None
+            )
+            if parent_dept:
+                kwargs["region_id"] = parent_dept.get("region_id")
+        except Exception:
+            kwargs["region_id"] = None
     try:
         department = create_service_department(name, code=code_token, **kwargs)
         department_id = department.get("id")
diff --git a/lawrisk/services/auth_service.py b/lawrisk/services/auth_service.py
index bb4f0a6..9b928af 100644
--- a/lawrisk/services/auth_service.py
+++ b/lawrisk/services/auth_service.py
@@ -279,6 +279,7 @@ def _public_user_payload(user: Dict[str, Any]) -> Dict[str, Any]:
             "phone": user.get("service_department_phone"),
             "parent_id": user.get("service_department_parent_id"),
             "region_id": user.get("service_department_region_id"),
+            "region_name": user.get("service_department_region_name"),
             "role": user.get("department_role"),
         }
     created_at = user.get("created_at")
@@ -322,9 +323,11 @@ def get_user_by_username(username: str) -> Optional[Dict[str, Any]]:
                 sd.code AS service_department_code,
                 sd.phone AS service_department_phone,
                 sd.parent_id AS service_department_parent_id,
-                sd.region_id AS service_department_region_id
+                sd.region_id AS service_department_region_id,
+                r.name AS service_department_region_name
             FROM auth_users au
             LEFT JOIN service_departments sd ON sd.id = au.service_department_id
+            LEFT JOIN regions r ON r.id = sd.region_id
             WHERE au.username = %s
             LIMIT 1
             """,
@@ -359,9 +362,11 @@ def get_user_by_id(user_id: str) -> Optional[Dict[str, Any]]:
                 sd.code AS service_department_code,
                 sd.phone AS service_department_phone,
                 sd.parent_id AS service_department_parent_id,
-                sd.region_id AS service_department_region_id
+                sd.region_id AS service_department_region_id,
+                r.name AS service_department_region_name
             FROM auth_users au
             LEFT JOIN service_departments sd ON sd.id = au.service_department_id
+            LEFT JOIN regions r ON r.id = sd.region_id
             WHERE au.id = %s
             LIMIT 1
             """,
@@ -394,9 +399,11 @@ def list_users(include_inactive: bool = False) -> List[Dict[str, Any]]:
                 sd.code AS service_department_code,
                 sd.phone AS service_department_phone,
                 sd.parent_id AS service_department_parent_id,
-                sd.region_id AS service_department_region_id
+                sd.region_id AS service_department_region_id,
+                r.name AS service_department_region_name
             FROM auth_users au
             LEFT JOIN service_departments sd ON sd.id = au.service_department_id
+            LEFT JOIN regions r ON r.id = sd.region_id
             {where_clause}
             ORDER BY au.created_at DESC
             """
@@ -419,6 +426,7 @@ def create_user(
     service_department_id: Optional[str] = None,
     department_role: Optional[str] = None,
     parent_department_id: Optional[str] = None,
+    service_department_region_id: Optional[str] = None,
     service_department_phone: Optional[str] = None,
 ) -> Dict[str, Any]:
     username_clean = (username or "").strip().lower()
@@ -436,6 +444,7 @@ def create_user(
                 code=dept_code,
                 phone=(service_department_phone or "").strip() or None,
                 parent_id=(parent_department_id or "").strip() or None,
+                region_id=(service_department_region_id or "").strip() or None,
             )
             dept_token = created.get("id")
         except Exception as exc:
diff --git a/static/super_admin.html b/static/super_admin.html
index e904acf..4760181 100644
--- a/static/super_admin.html
+++ b/static/super_admin.html
@@ -1185,6 +1185,7 @@
                         <th>用户名</th>
                         <th>显示名</th>
                         <th>部门</th>
+                        <th>区域</th>
                         <th>角色</th>
                         <th>创建时间</th>
                         <th>操作</th>
@@ -1214,6 +1215,11 @@
                 <label>单位电话（可选）
                     <input type="text" name="department_phone" placeholder="用于自动创建的单位联系电话">
                 </label>
+                <label>所属区域（可选）
+                    <select id="userCreateRegion" class="form-select" name="region_id">
+                        <option value="">不选择区域（默认继承上级区域）</option>
+                    </select>
+                </label>
                 <label>上级单位（可选，不选则创建顶级市级单位）
                     <select id="userCreateParent" class="form-select">
                         <option value="">不选择上级（顶级单位）</option>
@@ -1400,6 +1406,7 @@ const rootDeptsEl = document.getElementById('rootDepts');
 let state = {
     users: [],
     departments: [],
+    regions: [],
     themes: [],
     templateMeta: {},
     userFilter: {
@@ -1482,7 +1489,17 @@ async function loadCurrentUser() {
         document.getElementById('currentUserName').textContent = user.display_name || user.username || '未知管理员';
         document.getElementById('currentUserRole').textContent = user.role || 'admin';
         const dept = user.department;
-        document.getElementById('currentUserDept').textContent = dept ? `${dept.name || ''}${dept.code ? ' · ' + dept.code : ''}` : '未绑定部门';
+        const deptPieces = [];
+        if (dept) {
+            if (dept.name) deptPieces.push(dept.name);
+            if (dept.code) deptPieces.push(dept.code);
+            if (dept.region_name) {
+                deptPieces.push(dept.region_name);
+            } else if (dept.region_id) {
+                deptPieces.push(dept.region_id);
+            }
+        }
+        document.getElementById('currentUserDept').textContent = dept ? (deptPieces.join(' · ') || '未绑定部门') : '未绑定部门';
     } catch (err) {
         console.error('认证失败:', err);
         // 认证失败时重定向到登录页面
@@ -1502,6 +1519,7 @@ function renderDepartmentOptions() {
         deptParentSelect.innerHTML = parentOptions.join('');
     }
     renderUserCreateParentSelector();
+    renderUserCreateRegionSelector();
     if (userEditDept) {
         userEditDept.innerHTML = serviceOptions.join('');
     }
@@ -1520,6 +1538,37 @@ function renderUserCreateParentSelector() {
     parentSelect.innerHTML = options.join('');
 }
 
+function buildRegionOptions(selectedId = '', includeBlank = true) {
+    const options = [];
+    if (includeBlank) {
+        options.push('<option value="">不选择区域（继承上级或稍后再设）</option>');
+    }
+    let hasSelected = false;
+    (state.regions || []).forEach(region => {
+        const value = region.id || '';
+        const name = region.name || value || '未命名区域';
+        const selected = String(selectedId || '') === String(value) ? 'selected' : '';
+        if (selected) {
+            hasSelected = true;
+        }
+        options.push(`<option value="${value}" ${selected}>${name}</option>`);
+    });
+    if (selectedId && !hasSelected && !options.find(opt => opt.includes(`value="${selectedId}"`))) {
+        options.push(`<option value="${selectedId}" selected>${selectedId}</option>`);
+    }
+    if (!options.length) {
+        options.push('<option value="">暂无区域数据</option>');
+    }
+    return options.join('');
+}
+
+function renderUserCreateRegionSelector() {
+    const select = document.getElementById('userCreateRegion');
+    if (!select) return;
+    const current = select.value;
+    select.innerHTML = buildRegionOptions(current, true);
+}
+
 function renderRoleOptions() {
     const roles = new Set(DEFAULT_ROLE_ORDER);
     state.users.forEach(user => {
@@ -1548,7 +1597,8 @@ function applyUserFilters(users) {
     const roleFilter = state.userFilter.role || '';
     return users.filter(user => {
         const deptName = user.department ? (user.department.name || '') : '';
-        const text = `${user.username || ''} ${user.display_name || ''} ${deptName}`.toLowerCase();
+        const regionName = user.department ? (user.department.region_name || user.department.region_id || '') : '';
+        const text = `${user.username || ''} ${user.display_name || ''} ${deptName} ${regionName}`.toLowerCase();
         const matchKeyword = !keyword || text.includes(keyword);
         const matchRole = !roleFilter || user.role === roleFilter;
         return matchKeyword && matchRole;
@@ -1559,16 +1609,18 @@ function renderUserTable() {
     if (!userTableBody) return;
     const filtered = applyUserFilters(state.users);
     if (!filtered.length) {
-        userTableBody.innerHTML = `<tr><td colspan="6" style="text-align:center;color:#6b7280;padding:14px 0;">暂无用户，点击右上角“创建账号”开始添加</td></tr>`;
+        userTableBody.innerHTML = `<tr><td colspan="7" style="text-align:center;color:#6b7280;padding:14px 0;">暂无用户，点击右上角“创建账号”开始添加</td></tr>`;
         return;
     }
     userTableBody.innerHTML = filtered.map(user => {
         const dept = user.department ? user.department.name : '—';
+        const region = user.department ? (user.department.region_name || user.department.region_id || '—') : '—';
         const isActive = activeUserId && String(user.id) === String(activeUserId);
         return `<tr data-id="${user.id}" class="${isActive ? 'active-row' : ''}">
             <td>${user.username}</td>
             <td>${user.display_name || '—'}</td>
             <td>${dept}</td>
+            <td>${region}</td>
             <td><span class="pill">${getRoleLabel(user.role)}</span></td>
             <td>${formatDate(user.created_at)}</td>
             <td>
@@ -1634,6 +1686,12 @@ async function refreshUsers(options = {}) {
     }
 }
 
+async function refreshRegions() {
+    const data = await fetchJSON(`${API_BASE}/admin/regions`, {method: 'GET'});
+    state.regions = data.data.regions || [];
+    renderUserCreateRegionSelector();
+}
+
 async function refreshDepartments() {
     const data = await fetchJSON(`${API_BASE}/admin/service-departments`, {method: 'GET'});
     state.departments = data.data.departments || [];
@@ -1676,12 +1734,14 @@ function fillUserDrawer(user) {
     if (userSummaryBox) {
         const dept = user.department ? `${user.department.name || ''}${user.department.code ? ' · ' + user.department.code : ''}` : '未绑定';
         const deptPhone = user.department ? (user.department.phone || '—') : '—';
+        const region = user.department ? (user.department.region_name || user.department.region_id || '—') : '—';
         userSummaryBox.innerHTML = `
             <div class="summary-grid">
                 <div><div class="label">登录账号</div><div class="value">${user.username || '—'}</div></div>
                 <div><div class="label">显示名</div><div class="value">${user.display_name || '—'}</div></div>
                 <div><div class="label">角色</div><div class="value"><span class="pill">${getRoleLabel(user.role)}</span></div></div>
                 <div><div class="label">绑定部门</div><div class="value">${dept}</div></div>
+                <div><div class="label">所属区域</div><div class="value">${region}</div></div>
                 <div><div class="label">单位电话</div><div class="value">${deptPhone}</div></div>
                 <div><div class="label">创建时间</div><div class="value">${formatDate(user.created_at)}</div></div>
             </div>
@@ -1778,13 +1838,25 @@ if (userCreateForm) {
         evt.preventDefault();
         const form = evt.target;
         const parentSelect = document.getElementById('userCreateParent');
+        const regionSelect = document.getElementById('userCreateRegion');
         const parentDepartmentId = parentSelect ? (parentSelect.value || '') : '';
-
+        let regionId = regionSelect ? regionSelect.value : '';
+        if (!regionId && parentDepartmentId) {
+            const parentDept = state.departments.find(dept => String(dept.id) === String(parentDepartmentId));
+            if (parentDept) {
+                regionId = parentDept.region_id || '';
+            }
+        }
+        if (!regionId && !parentDepartmentId) {
+            showMessage('请选择所属区域，或指定上级单位继承区域', 'error');
+            return;
+        }
         const payload = {
             username: form.username.value.trim(),
             password: form.password.value.trim(),
             display_name: form.display_name.value.trim(),
             parent_department_id: parentDepartmentId || null,
+            region_id: regionId || null,
             department_phone: (form.department_phone.value || '').trim()
         };
         try {
@@ -1799,6 +1871,9 @@ if (userCreateForm) {
             if (parentSelect) {
                 parentSelect.value = '';
             }
+            if (regionSelect) {
+                regionSelect.value = '';
+            }
             form.department_phone.value = '';
             switchUserSubtab('user-list-panel');
             await refreshDepartments();
@@ -1807,6 +1882,18 @@ if (userCreateForm) {
             showMessage(err.message, 'error');
         }
     });
+
+    const parentSelect = document.getElementById('userCreateParent');
+    const regionSelect = document.getElementById('userCreateRegion');
+    if (parentSelect && regionSelect) {
+        parentSelect.addEventListener('change', () => {
+            if (regionSelect.value) {
+                return;
+            }
+            const parentDept = state.departments.find(dept => String(dept.id) === String(parentSelect.value || ''));
+            regionSelect.value = parentDept ? (parentDept.region_id || '') : '';
+        });
+    }
 }
 
 if (userEditForm) {
@@ -2084,6 +2171,7 @@ function flattenTree(nodes, level = 0, result = [], parentId = null) {
             name: node.name || '未知部门',
             code: node.code || '',
             region_name: node.region_name || '',
+            region_id: node.region_id || '',
             level,
             node
         };
@@ -2556,6 +2644,7 @@ document.getElementById('downloadTemplateBtn').addEventListener('click', () => {
 async function bootstrap() {
     await loadCurrentUser();
     await Promise.all([
+        refreshRegions(),
         refreshUsers(),
         refreshDepartments(),
         refreshThemes(),
@@ -2634,6 +2723,7 @@ function showAddChildModal(parentNode) {
             name: formData.get('name'),
             code: formData.get('code'),
             phone: formData.get('phone'),
+            region_id: formData.get('region_id'),
             parent_id: parentNode.id,
             description: formData.get('description'),
             grade: autoGrade  // 自动计算，无需手动选择
@@ -2662,6 +2752,12 @@ function showAddChildModal(parentNode) {
         <label>联系电话
             <input type="text" name="phone" placeholder="座机或手机号">
         </label>
+        <label>所属区域
+            <select name="region_id">
+                ${buildRegionOptions(parentNode.region_id || '', true)}
+            </select>
+            <small style="color: #6b7280; font-size: 12px;">不选择则默认继承上级区域</small>
+        </label>
         <label>备注
             <textarea name="description" rows="2" placeholder="可填写简要职责"></textarea>
         </label>
@@ -2676,6 +2772,7 @@ function showEditModal(nodeData) {
         return {
             name: formData.get('name'),
             phone: formData.get('phone'),
+            region_id: formData.get('region_id'),
             description: formData.get('description')
             // 编辑时不修改grade，grade根据层级自动计算
         };
@@ -2702,6 +2799,11 @@ function showEditModal(nodeData) {
         <label>联系电话
             <input type="text" name="phone" value="${nodeData.phone || ''}">
         </label>
+        <label>所属区域
+            <select name="region_id">
+                ${buildRegionOptions(nodeData.region_id || '', true)}
+            </select>
+        </label>
         <label>备注
             <textarea name="description" rows="2">${nodeData.description || ''}</textarea>
         </label>