diff --git a/src/layouts/CoreItemsListView/CoreItemsListViewContent.tsx b/src/layouts/CoreItemsListView/CoreItemsListViewContent.tsx
new file mode 100644
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+++ b/src/layouts/CoreItemsListView/CoreItemsListViewContent.tsx
@@ -0,0 +1,240 @@
+import { Fragment } from "react";
+import { useNavigate } from "react-router-dom";
+import { styled } from "@mui/material/styles";
+import Box from "@mui/material/Box";
+import Divider from "@mui/material/Divider";
+import { usePageLayoutContext } from "@/app/PageLayoutContext/usePageLayoutContext";
+import { DataGrid, dataGridClassNames, type DataGridProps } from "@/components/DataGrid";
+import {
+  VirtualizedList,
+  ListFooter,
+  listClassNames,
+  type VirtualizedListProps,
+} from "@/components/List";
+import { getTabPanelA11yProps } from "@/components/Tabs/helpers";
+import {
+  CoreContentViewLayout,
+  coreContentViewLayoutClassNames,
+  type CoreContentViewLayoutProps,
+} from "@/layouts/CoreContentViewLayout";
+import {
+  listViewSettingsStore,
+  type ListViewSettingsStoreKey,
+} from "@/stores/listviewSettingsStore";
+import { ListHeader, MobileListHeaderTabs } from "./ListHeader";
+import { ListViewHeaderToggleButtons } from "./ListViewHeaderToggleButtons";
+import { coreItemsListViewClassNames as listViewClassNames } from "./classNames";
+import { LIST_VIEW_MODES, type ListViewListName } from "./types";
+import type { ListViewAppPath } from "@/routes/appPaths";
+import type { GridEventListener, GridValidRowModel } from "@mui/x-data-grid";
+
+/**
+ * Provides common styles/props/logic to all core-item list views.
+ */
+export const CoreItemsListViewContent = <
+  ListItemType extends Record<string, unknown>,
+  DataGridItemType extends GridValidRowModel = ListItemType,
+>({
+  // TABLE/DataGrid PROPS:
+  tableProps,
+  // LIST/VirtualizedList PROPS:
+  lists,
+  renderItem,
+  virtualizedListProps = {},
+  // HEADER-RELATED PROPS:
+  headerLabel,
+  itemViewBasePath,
+  headerComponents,
+  listViewSettingsStoreKey,
+  ...containerProps
+}: CoreItemsListViewContentProps<ListItemType, DataGridItemType>) => {
+  const nav = useNavigate();
+  const { isMobilePageLayout } = usePageLayoutContext();
+  const { viewMode, listVisibility } =
+    listViewSettingsStore[listViewSettingsStoreKey].useSubToStore();
+
+  const tryNavToItemView = ({ itemID }: { itemID?: string | number }) => {
+    if (itemID) nav(`${itemViewBasePath}/${encodeURIComponent(itemID)}`);
+  };
+
+  const handleClickDataGridRow: GridEventListener<"rowClick"> = ({ id }) => {
+    tryNavToItemView({ itemID: id });
+  };
+
+  const handleClickListItem = (event: React.MouseEvent<HTMLLIElement | HTMLDivElement>) => {
+    const { itemId: itemID } = event.currentTarget.dataset;
+    tryNavToItemView({ itemID });
+  };
+
+  const numVisibleLists = listVisibility
+    ? Object.values(listVisibility).filter((isVisible) => isVisible).length
+    : 1;
+
+  const showMobileListHeaderTabs =
+    isMobilePageLayout &&
+    viewMode === LIST_VIEW_MODES.LIST &&
+    lists.length > 1 &&
+    listViewSettingsStoreKey !== "contacts"; /* <-- This last condition is implied by
+      `lists.length > 1`, but is included to help TS narrow `listViewSettingsStoreKey`.
+      Without this, TS complains when the key is passed to MobileListHeaderTabs.  */
+
+  return (
+    <StyledCoreContentViewLayout
+      className={listViewClassNames.root}
+      headerLabel={headerLabel}
+      headerComponents={
+        <>
+          <ListViewHeaderToggleButtons
+            listViewSettingsStoreKey={listViewSettingsStoreKey}
+            isMobilePageLayout={isMobilePageLayout}
+          />
+          {headerComponents}
+        </>
+      }
+      {...containerProps}
+    >
+      <Box className={listViewClassNames.contentContainer}>
+        <DataGrid<DataGridItemType>
+          rowDataItemName={headerLabel}
+          onRowClick={handleClickDataGridRow}
+          style={{ display: viewMode === LIST_VIEW_MODES.TABLE ? "flex" : "none" }}
+          logLevel={false} // silences "invalid height/width" err msg caused by display: none
+          {...tableProps}
+        />
+        {showMobileListHeaderTabs && (
+          <MobileListHeaderTabs listViewSettingsStoreKey={listViewSettingsStoreKey} />
+        )}
+        {lists.map(({ listName, items, listComponentProps = {} }, index) => (
+          <Fragment key={`lists-container:${listName ?? "list"}`}>
+            {index === 1 && (
+              <Divider
+                className={listViewClassNames.listsDivider}
+                orientation="vertical"
+                variant="middle"
+                style={{
+                  display:
+                    numVisibleLists < 2 || isMobilePageLayout || viewMode === LIST_VIEW_MODES.TABLE
+                      ? "none"
+                      : "block",
+                }}
+              />
+            )}
+            <Box
+              className={listViewClassNames.listContainer}
+              style={{
+                display:
+                  (listVisibility && (!listName || !listVisibility?.[listName])) ||
+                  viewMode === LIST_VIEW_MODES.TABLE
+                    ? "none"
+                    : "flex",
+                // MobileListHeaderTabs uses position absolute, so add padding to account for its size
+                paddingTop: showMobileListHeaderTabs ? "3rem" : 0,
+              }}
+              // a11y props for MobileListHeaderTabs (in which case this Box is a TabPanel):
+              {...(listName && showMobileListHeaderTabs && getTabPanelA11yProps(listName))}
+            >
+              {listName && !showMobileListHeaderTabs && <ListHeader listName={listName} />}
+              <VirtualizedList
+                components={{ Footer: ListFooter as React.ComponentType }}
+                componentProps={listComponentProps}
+                totalCount={items.length}
+                itemContent={(index) =>
+                  renderItem({
+                    item: items[index],
+                    onClick: handleClickListItem,
+                    ...(!!listName && { listName }),
+                  })
+                }
+                {...virtualizedListProps}
+              />
+            </Box>
+          </Fragment>
+        ))}
+      </Box>
+    </StyledCoreContentViewLayout>
+  );
+};
+
+const StyledCoreContentViewLayout = styled(CoreContentViewLayout)(({ theme: { variables } }) => ({
+  [`& .${coreContentViewLayoutClassNames.childrenContainer}`]: {
+    paddingBottom: 0,
+  },
+
+  "& *": {
+    whiteSpace: "nowrap",
+  },
+
+  // CONTENT CONTAINER:
+  [`& .${listViewClassNames.contentContainer}`]: {
+    position: "relative",
+    height: "100%",
+    minHeight: "100%",
+    width: "100%",
+    display: "flex",
+    flexDirection: "row",
+    justifyContent: "space-between",
+
+    [`& .${dataGridClassNames.root}`]: {
+      height: variables.isMobilePageLayout ? "calc( 100% - 5rem )" : "calc( 100% - 7rem )",
+      marginBottom: "1rem !important",
+    },
+
+    [`& > hr.${listViewClassNames.listsDivider}`]: {
+      height: "auto",
+      alignSelf: "stretch",
+      minWidth: "1px",
+      margin: "0 clamp(0.5rem, 1.5%, 1rem)",
+    },
+
+    [`& > .${listViewClassNames.listContainer}`]: {
+      flexGrow: 1,
+      width: variables.isMobilePageLayout ? "100%" : "50%",
+      flexDirection: "column",
+      minHeight: "50vh",
+
+      [`& .${listClassNames.virtualizedList.emptyPlaceHolderComponent.root}`]: {
+        height: "95%", // prevents scrollbar from appearing
+      },
+    },
+  },
+}));
+
+export type CoreItemsListViewContentProps<
+  ListItemType extends Record<string, unknown>,
+  DataGridItemType extends GridValidRowModel = ListItemType,
+> = {
+  // TABLE/DataGrid PROPS:
+  tableProps: Omit<
+    DataGridProps<DataGridItemType>,
+    "rowDataItemName" | "onRowClick" | "style" | "logLevel"
+  >;
+  // LIST/VirtualizedList PROPS:
+  lists: Array<{
+    listName?: ListViewListName;
+    items: Array<ListItemType>;
+    listComponentProps?: VirtualizedListProps["componentProps"];
+  }>;
+  renderItem: ListViewRenderItemFn<ListItemType>;
+  virtualizedListProps?: Omit<
+    VirtualizedListProps,
+    "components" | "componentProps" | "totalCount" | "itemContent"
+  >;
+  // HEADER-RELATED PROPS:
+  headerLabel: Exclude<CoreContentViewLayoutProps["headerLabel"], undefined>; // made required
+  headerComponents?: CoreContentViewLayoutProps["headerComponents"]; // made optional
+  itemViewBasePath: ListViewAppPath;
+  listViewSettingsStoreKey: ListViewSettingsStoreKey;
+} & Pick<React.ComponentProps<typeof StyledCoreContentViewLayout>, "style" | "sx">;
+
+/**
+ * A function used by `VirtualizedList` to render a list item.
+ */
+export type ListViewRenderItemFn<ListItemType extends Record<string, unknown>> = ({
+  item,
+  onClick,
+  listName,
+}: {
+  item: ListItemType;
+  onClick?: React.MouseEventHandler<HTMLLIElement | HTMLDivElement>;
+  listName?: ListViewListName;
+}) => React.ReactNode;