Postcode · Middelharnis, South Holland

Postcode 3241: Neighbourhoods Middelharnis centrum and Middelharnis bomenbuurt

On 1 January 2026, postcode 3241 in Middelharnis (Middelharnis centrum and Middelharnis bomenbuurt) had 8,395 residents. 15.6% of them (1,310 people) have a migration background: they were born abroad or have at least one parent who was. That is higher than the municipality of Goeree-Overflakkee (11.1%) and lower than the national average (29.1%). The largest origin groups are other Europe (5.9%), other Asia (3.6%) and other Africa (1.7%). 71.4% of residents with a migration background were born abroad themselves. Since 2022 the share has risen by 7.1 percentage points.

Residents: 8,395 on 1 January 2026
Migration background: 15.6% 1,310 people
Born abroad: 71.4% of those with a migration background
Change since 2022: +7.1 pp in share with a migration background

Migration background, share of residents

Share of residents with a migration background in this postcode and its neighbours.

Where residents come from

Origin of residents on 1 January 2026, as a share of all residents.

Dutch origin and migration background

84% 16%

Dutch origin 84.4% 7,085
Migration background 15.6% 1,310

Largest origin groups

Bars show each group’s share of all residents of 3241. For comparison, the line marks Goeree-Overflakkee and the circle the Netherlands.

Other Europe Europe excluding the Netherlands, Belgium, Germany and Poland

5.9% 495 people

Goeree-Overflakkee 2.6% Netherlands 5.6%
Other Asia Asia excluding Indonesia and Turkey

3.6% 300 people

Goeree-Overflakkee 2.5% Netherlands 5.3%
Other Africa Africa excluding Morocco

1.7% 140 people

Goeree-Overflakkee 1.2% Netherlands 2.3%
Indonesia

1.0% 85 people

Goeree-Overflakkee 0.86% Netherlands 1.9%
Germany

0.66% 55 people

Goeree-Overflakkee 0.84% Netherlands 1.9%
Poland

0.60% 50 people

Goeree-Overflakkee 1.0% Netherlands 1.4%
Suriname

0.42% 35 people

Goeree-Overflakkee 0.45% Netherlands 2.0%
Belgium

0.42% 35 people

Goeree-Overflakkee 0.35% Netherlands 0.76%
Turkey

0.36% 30 people

Goeree-Overflakkee 0.30% Netherlands 2.6%
Dutch Caribbean Aruba, Curaçao, Sint Maarten, Bonaire, Sint Eustatius and Saba

0.36% 30 people

Goeree-Overflakkee 0.28% Netherlands 1.1%
Other Americas & Oceania Americas and Oceania excluding Suriname and the Dutch Caribbean

0.36% 30 people

Goeree-Overflakkee 0.61% Netherlands 1.7%
Morocco

0.18% 15 people

Goeree-Overflakkee 0.12% Netherlands 2.4%

First and second generation

Residents with a migration background, by whether they were born abroad themselves.

71% 29%

Born abroad (first generation) 71.4% 935
Born in the Netherlands (second generation) 28.6% 375

Men and women

Men: 4,245
Women: 4,145

Compared with all postcodes

Netherlands 29.1% 3241 15.6%

Higher than 43% of all postcodes in the Netherlands

Trend since 1998

Share of residents with a migration background, compared with larger areas.

Show

Measure % Residents

New CBS classification

15.6%

3241
Goeree-Overflakkee
Netherlands

Show as table

Year	3241	Goeree-Overflakkee	Netherlands
1998	4.7%	4.0%	16.7%
1999	5.2%	4.1%	17.1%
2000	5.4%	4.2%	17.5%
2001	5.5%	4.3%	18.0%
2002	5.8%	4.4%	18.4%
2003	5.3%	4.4%	18.8%
2004	5.2%	4.4%	19.0%
2005	5.1%	4.6%	19.2%
2006	5.2%	4.8%	19.3%
2007	5.2%	4.7%	19.4%
2008	5.2%	4.8%	19.6%
2009	5.1%	4.8%	19.9%
2010	5.5%	5.0%	20.3%
2011	5.6%	5.1%	20.6%
2012	5.6%	5.3%	20.9%
2013	5.9%	5.4%	21.1%
2014	6.0%	5.5%	21.4%
2015	6.0%	5.5%	21.7%
2016	6.2%	5.7%	22.1%
2017	6.6%	5.9%	22.6%
2018	6.7%	6.4%	23.1%
2019	7.0%	6.7%	23.6%
2020	7.2%	7.0%	24.2%
2021	7.5%	7.3%	24.6%
2022	8.5%	8.2%	26.0%
2023	9.1%	9.1%	27.1%
2024	10.2%	9.7%	27.9%
2025	13.6%	10.2%	28.5%
2026	15.6%	11.1%	29.1%

In 2022 CBS switched to a new origin classification. Up to 2021 the line shows the old “migration background” figures; the overlap years show a small break (about +0.8 points nationally).

Nearby postcodes

				Largest group
3245 Sommelsdijk centrum	10.6%	7,485	+1.4 pp	Other Asia
3255 Oude-Tonge centrum	12.1%	5,330	+2.1 pp	Other Europe
3244 Nieuwe-Tonge	8.4%	2,435	+1.6 pp	Other Asia
3243 Stad aan 't Haringvliet	12.5%	1,640	+2.9 pp	Other Europe

All figures

Number of residents per origin group on 1 January. Figures up to 2021 use the old CBS classification.

Year	Total residents	Dutch origin	Migration background	Europe	Outside Europe	Turkey	Morocco	Suriname	Indonesia	Dutch Caribbean	Germany	Poland	Belgium	Other Europe	Other Africa	Other Asia	Other Americas & Oceania	Western migration background	Non-Western migration background
1998	5,895	5,615	280	115	170	0	0	25	50	10	45	0	10	60	30	35	20	170	110
1999	5,910	5,600	310	120	195	5	0	25	50	15	55	5	15	45	30	60	10	180	130
2000	5,990	5,665	325	130	190	5	0	35	55	15	45	10	20	55	30	45	5	195	135
2001	6,110	5,770	335	140	195	0	5	30	65	10	45	5	20	70	30	45	10	205	130
2002	6,205	5,850	360	155	195	5	5	30	60	15	55	10	20	70	25	50	5	225	135
2003	6,085	5,760	325	135	190	5	0	25	60	15	60	10	20	45	15	55	15	210	115
2004	6,050	5,735	315	145	175	5	0	25	55	15	60	5	25	55	10	50	15	215	105
2005	6,070	5,760	310	145	170	0	5	30	60	10	60	5	20	60	10	40	15	215	100
2006	6,360	6,030	330	150	180	5	0	30	65	10	65	10	20	55	15	35	20	220	105
2007	6,525	6,185	340	150	190	5	5	30	65	10	55	10	20	65	10	35	30	220	120
2008	6,500	6,160	340	150	190	5	5	30	60	10	60	15	20	55	10	40	30	225	120
2009	6,610	6,265	340	145	195	5	5	30	60	15	55	20	20	50	10	35	35	225	115
2010	6,630	6,270	365	160	210	0	5	35	70	15	55	20	20	65	10	40	35	240	125
2011	6,735	6,360	375	155	210	5	5	30	65	15	55	20	20	60	15	45	30	240	130
2012	6,780	6,400	380	175	210	0	0	35	70	15	50	20	20	85	15	45	30	250	130
2013	6,940	6,530	410	190	220	5	5	35	70	20	50	30	25	85	15	45	25	270	140
2014	6,970	6,550	420	190	225	5	5	30	75	25	55	30	25	80	15	45	25	280	140
2015	6,940	6,525	415	190	230	5	5	30	75	20	55	20	25	90	15	50	30	275	145
2016	6,980	6,545	435	195	240	0	10	25	70	25	55	20	25	95	20	65	25	270	165
2017	7,190	6,715	475	210	265	5	5	30	70	20	55	25	30	100	35	75	25	300	175
2018	7,290	6,800	490	215	275	5	0	30	70	20	55	30	30	100	35	90	25	300	190
2019	7,425	6,905	520	225	300	10	5	30	70	20	50	30	40	105	30	105	30	315	210
2020	7,460	6,920	540	235	305	5	5	35	70	25	55	35	35	110	35	110	20	320	220
2021	7,645	7,070	575	245	335	5	5	40	70	20	55	35	35	120	35	130	30	335	240
2022	7,755	7,090	660	255	400	5	5	40	75	25	60	40	40	120	60	160	35	340	275
2023	7,720	7,020	705	275	435	15	10	40	80	25	65	45	35	130	60	170	30	355	300
2024	7,815	7,015	800	335	465	25	10	35	85	25	55	55	40	185	70	180	30	–	–
2025	8,060	6,960	1,100	590	505	30	10	35	85	30	55	55	40	440	85	200	30	–	–
2026	8,395	7,085	1,310	645	665	30	15	35	85	30	55	50	35	495	140	300	30	–	–

Definitions and method · CBS 85640NED (2022–2026), 83503NED (1998–2023)